If you are about to start your first IVF cycle, you are probably reading everything you can find — protocols, timelines, success stories, and horror stories. The information is there, but it is scattered, and most of it is either too clinical or too anecdotal to actually prepare you.

This is a week-by-week walkthrough of what a first IVF cycle looks like — what happens medically, what you will likely feel physically, and what most people do not mention until you are already in it.

Before Stimulation Starts: The Baseline

Before your injections begin, your clinic will do a baseline assessment — usually on Day 2 or Day 3 of your period. This involves a transvaginal ultrasound to count your antral follicles (AFC) and check for ovarian cysts, and blood tests to confirm baseline hormone levels (FSH, LH, estradiol).

Your doctor confirms your stimulation protocol at this point — which medications, what starting dose, and what monitoring schedule to expect. If you have not already sorted out your medications, this is when you need to have them ready.

If the baseline scan shows a cyst on either ovary, your cycle start may be delayed by a week or two. This happens in approximately 10–15% of cycles and is frustrating but not a bad sign — the protocol just needs adjustment.

If everything looks clear: stimulation starts the next day, or as soon as your clinic gives you the go-ahead.

Days 1–5 of Stimulation: The First Week of Injections

The first injection is the most nerve-wracking. By Day 3, most people are doing it in 90 seconds without thinking about it.

The gonadotropin (FSH) injection goes into the fat of your lower abdomen. Pens like Gonal-F and Puregon are pre-filled and easy to use. Powder vials require mixing first — your nurse will walk you through this, and your clinic will usually give you a practice run before you leave.

Physical side effects in the first week are usually mild: minor bruising or redness at the injection site, mild bloating as follicles begin to develop, and occasional headaches. Most women describe the first week as manageable. The injections hurt less than most people fear.

Your first monitoring scan typically happens on Day 4–5 of stimulation. Your doctor is looking at follicle sizes and blood estradiol levels to confirm your ovaries are responding to the medication. Dose adjustments are common at this point.

At this stage most couples feel a mixture of cautious optimism and anxiety. You are looking at follicle counts on an ultrasound screen and wondering what the numbers mean. Your nurse will give you context — but it is worth knowing that follicle counts at Day 5 do not predict the final outcome. Eggs can still develop from follicles that look small at Day 5.

Days 6–10: The Middle of Stimulation

Around Day 5–6, your clinic will add the GnRH antagonist (Cetrotide or Orgalutran) to prevent premature ovulation. You are now doing two injections per day, usually in the morning and evening.

Monitoring appointments become more frequent — every 2–3 days, sometimes daily toward the end. Your follicles are growing roughly 1–2mm per day; you need 3 or more follicles to reach approximately 17–18mm before the trigger shot is given.

Physical symptoms typically peak in this phase. Bloating becomes more noticeable. Your lower abdomen may feel full or heavy. Some women describe mild pelvic pressure or cramping. Emotional volatility is common — estrogen levels during stimulation are significantly higher than a normal cycle, and this affects mood in ways that are real, not imagined.

Most women are able to continue working through stimulation, with the caveat that monitoring appointments (usually in the morning, often with waits) require flexibility. Let your manager know you may need some morning appointments, even if you keep the reason private.

If you develop severe bloating, significant weight gain over 2–3 days, or pain that is more than uncomfortable, contact your clinic immediately. These can be early signs of ovarian hyperstimulation syndrome (OHSS) — a known complication that affects 1–3% of cycles severely. Most cases are mild and self-limiting, but severe OHSS requires medical attention.

The Trigger Shot

At your final monitoring scan — usually Day 10–12, sometimes Day 14 — your doctor will confirm that enough follicles have reached mature size. This is when you receive the trigger shot instructions.

Your nurse will tell you the exact time to take the trigger shot. The egg retrieval will be scheduled exactly 35–36 hours after this time. If your retrieval is at 9am, your trigger shot is at 9pm or 10pm two nights before.

This is the most time-critical injection of the entire cycle. Set two alarms. Tell your partner. Do not miss this one.

After the trigger shot, stimulation injections stop. The next 36 hours involve no clinic visits and no injections. Many women describe this as a brief and strangely quiet period — a pause before the most significant appointment of the cycle.

Egg Retrieval Day

Egg retrieval happens in the clinic under IV sedation or light general anesthesia. You will not feel the procedure. It takes approximately 15–30 minutes.

The procedure: a thin needle is guided through the vaginal wall into each follicle under ultrasound guidance. The fluid from each follicle is aspirated into a test tube and immediately handed to the embryologist, who examines it under a microscope to retrieve the egg. You are unconscious or heavily sedated during this.

You wake up in recovery. Your nurse will tell you how many eggs were retrieved before you leave.

The egg number: The number retrieved is not always equal to the number of follicles on your last ultrasound. Some follicles may be empty (immature), and not every retrieved egg will be mature. Mature eggs are the ones that can be fertilized. The number of mature eggs (MII) typically comes back from the lab on retrieval day or the following morning.

Most women feel crampy and tired on retrieval day. Plan to rest. Do not drive yourself. Pain is typically manageable with paracetamol. Bloating from the procedure resolves over 3–5 days in most cases.

If you experience severe pain, fever, significant bloating, or reduced urination in the days after retrieval, contact your clinic. Post-retrieval OHSS can develop even after a mild stimulation cycle.

Fertilization and the First Embryo Report

On retrieval day or the following morning, your eggs are either placed with sperm (standard IVF) or each egg is injected individually with a single sperm (ICSI). Fertilization is checked the next morning.

The fertilization call from your embryologist is a pivotal moment. Normal fertilization shows as two pronuclei (2PN) inside the egg under the microscope. Fertilization rates typically range from 60–80% of mature eggs. So if you retrieved 10 mature eggs, expect 6–8 to fertilize normally — that is a good outcome.

Abnormal fertilization (0PN or 3PN) occurs in a minority of eggs and those embryos are not used. This is not a sign that something went wrong — it is a normal part of the process.

After fertilization confirmation, embryos are cultured in the incubator for 3–5 days. Your clinic may give you updates on Day 3 (cleavage stage) and Day 5 (blastocyst stage), or they may only call when they have a final result at Day 5.

The Blastocyst Stage: Day 5 and the Waiting

Most clinics culture embryos to Day 5 now, when they reach the blastocyst stage. Blastocysts have better implantation rates than Day 3 embryos, and culturing to Day 5 allows the lab to identify the strongest embryos before transfer.

Attrition is a normal and expected part of this process. Not all fertilized eggs become blastocysts. Roughly 40–60% of Day 1 fertilized embryos will reach the blastocyst stage. If you started with 8 fertilized eggs, having 3–5 blastocysts is a good outcome. Having 1–2 is still enough to proceed.

Blastocysts are graded by the embryologist on expansion stage (1–6), inner cell mass quality (A, B, or C), and trophectoderm quality (A, B, or C). A 4AA is a fully expanded blastocyst with excellent grades on both scores. But a 3BB or 4BC can still result in a healthy pregnancy — grading predicts probability, not outcome.

This is the phase where anxiety peaks for most couples. You are waiting for the phone to ring. You are watching numbers drop — from eggs retrieved, to mature, to fertilized, to blastocyst. Every attrition feels like a loss. It is genuinely hard. Allow yourself to feel that.

Embryo Transfer

If your embryos are being transferred fresh (Day 5 of culture = Day 7 of retrieval if trigger was Day 1), you will have a transfer appointment scheduled in advance. If your clinic is doing a freeze-all cycle (freezing all embryos and transferring in a later cycle), you will be scheduled for a frozen embryo transfer (FET) in a subsequent cycle.

Fresh transfers are less common than they used to be. Many clinics now prefer freeze-all because it gives the uterus time to recover from stimulation and allows for genetic testing if needed. FET cycles have comparable or slightly better outcomes than fresh transfers in most studies.

The transfer itself is a minor procedure — no anesthesia in most cases. Your doctor uses a thin catheter to place the embryo(s) into the uterus under ultrasound guidance. You will be awake. It typically takes 5–15 minutes and feels like a PAP smear.

After the transfer, you will be asked to rest for 10–30 minutes in the clinic. Then you go home. Bed rest beyond a few hours is not medically indicated — research does not support extended rest improving implantation, despite what well-meaning relatives may tell you.

Progesterone support continues from this point — typically for 10–14 days until the pregnancy test, and continuing into early pregnancy if the test is positive.

The Two-Week Wait

Nobody prepares you adequately for the two-week wait (2WW). The injections, the monitoring, the retrieval — those are hard, but they involve doing something. The 2WW involves doing nothing. Just waiting to find out if the embryo implanted.

Progesterone (the luteal support medication) causes many of the same symptoms as early pregnancy — bloating, breast tenderness, fatigue, nausea, emotional sensitivity. This makes symptom-spotting during the 2WW largely useless. You cannot tell from symptoms whether you are pregnant.

Testing early with a home pregnancy test during the 2WW is common. If you used an hCG trigger shot (Ovitrelle), be aware that hCG can give a false positive for up to 10 days after the injection. The only reliable test is a blood beta-hCG at the clinic, which your clinic will schedule approximately 10–14 days after the transfer.

Most women describe the 2WW as the hardest part of an IVF cycle — harder than the injections, harder than the retrieval. The uncertainty is its own kind of suffering. There is no way around it. You just move through it.

What helps: staying occupied without being in denial. Telling one trusted person the timeline so you are not completely alone in it. Not reading other people's IVF stories obsessively (they will feel either like false hope or like warnings). Being honest with your partner about the fear.

The Beta-hCG Result

On test day, a blood beta-hCG level above 25 mIU/mL is generally considered a positive. A level above 100 at 14 days post-transfer is a good sign. A level between 5–25 may indicate a "biochemical pregnancy" — a very early pregnancy that did not fully implant. This is painful and is considered a pregnancy loss, even if it happened before a heartbeat was visible.

If the result is positive, your clinic will schedule a repeat beta-hCG 48 hours later to confirm the level is doubling appropriately. A scan to confirm intrauterine pregnancy typically happens at around 6–7 weeks of gestation.

If the result is negative — your clinic should schedule a follow-up consultation to discuss what happened, what the embryology data shows, and what the next steps are. You are entitled to a debrief. Ask for it.

What a First Cycle Teaches You

Even cycles that do not result in a pregnancy produce valuable information:

  • How your ovaries respond to stimulation (your "ovarian reserve" in practice, not just on paper)
  • How many eggs you typically retrieve and what your fertilization rate is
  • Whether you produce blastocysts — which predicts future cycle outcomes more accurately than AMH alone
  • Whether your doctor needs to adjust the protocol — different stimulation protocols, different medication doses, or a freeze-all approach if OHSS risk is a concern

First cycles are often described by doctors as "informational." That is not a consolation prize — it is genuinely true. The data from your first cycle is the best predictor of what future cycles will look like, and it allows your team to personalize subsequent attempts more precisely.

You Do Not Have to Navigate This Alone

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An IVF cycle is one of the most medically and emotionally demanding experiences a person can go through. You deserve accurate information, a companion who understands the process, and honesty about what to expect — not just at the optimistic end, but at every point in the journey.