The IVF Timeline Explained: What Actually Happens Week by Week — And What to Expect at Each Stage

Why Understanding the IVF Timeline Changes Everything

For most people, IVF feels overwhelming — not because the process itself is impossible to understand, but because no one has walked them through it clearly. You hear terms like "stimulation," "retrieval," and "transfer," but it's hard to picture what a real IVF cycle actually looks like from Monday to Sunday, week after week.

At Iswarya Fertility, one of the most common things our patients tell us is that they wish someone had explained the timeline to them earlier. Not just the medical steps — but the emotional rhythm of it. When you'll feel fine. When it gets intense. When you need to take time off work. When you just need to rest.

This guide is designed to give you exactly that — a week-by-week picture of what a standard IVF cycle looks like, so you can prepare your body, your schedule, and your mind.

Before the Cycle Begins: The Preparation Phase (2–4 Weeks Before)

Before a single injection is given, your fertility team does something critically important: they investigate. This preparation phase typically includes:

• Baseline blood tests — checking hormones like FSH, LH, AMH, and oestradiol to understand your ovarian reserve
• Antral follicle count (AFC) — an ultrasound to count the resting follicles in your ovaries, which helps predict how you'll respond to stimulation
• Uterine assessment — a scan or hysteroscopy to check for fibroids, polyps, or uterine abnormalities
• Semen analysis — for your partner, or a review of donor sperm if applicable
• Pre-cycle medications — some protocols begin with a short course of oral contraceptive pills to synchronise your cycle and improve follicle development

This phase is not the most dramatic, but it is one of the most important. The decisions made here — about your protocol, your medication doses, and your timing — shape everything that follows.

Week 1: Ovarian Stimulation Begins

This is when the cycle officially starts. You'll begin daily hormone injections — typically gonadotropins — to stimulate your ovaries to produce multiple follicles rather than the single egg your body would naturally release.

Most people are anxious about the injections, but they're genuinely more manageable than expected. Many patients self-administer them at home after a quick training session at the clinic.

During this week, you can expect:

• Daily or every-other-day monitoring visits — blood tests and ultrasound scans to track how your follicles are growing
• Possible bloating or mild pelvic heaviness as your ovaries begin to enlarge
• Dose adjustments based on your response — this is normal and expected

Some women feel emotional during stimulation due to hormonal shifts. This is completely normal. Fatigue is also common. Try to keep your schedule light if possible during this week.

Week 2: Monitoring, the Trigger Shot, and Egg Retrieval

By the middle of week two, your follicles will have reached a mature size — typically 18–20mm. This is when you'll receive what's called the trigger shot — an injection of hCG or a GnRH agonist — which signals your eggs to complete their final maturation.

The timing of this injection is precise. Egg retrieval is scheduled exactly 34–36 hours after the trigger.

What Happens During Egg Retrieval?

Egg retrieval (also called oocyte pick-up or OPU) is a minor surgical procedure performed under light sedation. Using a fine needle guided by ultrasound, your doctor carefully aspirates fluid from each mature follicle. The embryology team immediately checks the fluid under a microscope to identify and count the eggs.

The procedure itself takes around 20–30 minutes. You'll rest in recovery for a couple of hours and will need someone to take you home. Most women feel mild cramping and bloating for a day or two afterward — this is normal and settles quickly.

Fertilisation in the Lab

On the same day, your partner provides a semen sample (or donor sperm is prepared). The eggs and sperm are combined — either through conventional IVF or ICSI (where a single sperm is injected directly into each egg). The next morning, the lab checks for fertilisation. Hearing how many eggs have fertilised is often one of the most emotional moments of the whole cycle.

Days 3–6 After Retrieval: Watching Your Embryos Grow

Your embryos spend the next several days developing in a carefully controlled lab environment. The embryology team monitors them at key milestones:

• Day 3 — embryos are typically at the 6–8 cell stage
• Day 5 or 6 — the strongest embryos reach the blastocyst stage, a more complex structure that has a significantly higher implantation potential

At Iswarya Fertility, blastocyst culture and grading are performed using advanced embryoscopy technology, allowing embryologists to assess development without disturbing the embryo — improving selection accuracy and outcomes.

Embryos that reach a good quality blastocyst stage may be transferred fresh, or frozen for a future cycle — a decision that depends on your uterine environment, your hormone levels, and your overall response to stimulation.

The Embryo Transfer: A Simpler Step Than Most Expect

Embryo transfer is often the step patients dread most — but it's actually the least physically demanding part of the entire process. It requires no sedation in most cases, takes about 10 minutes, and feels similar to a smear test.

Using a thin catheter guided by ultrasound, your doctor places one (or sometimes two) embryo(s) directly into your uterus. After a brief rest, you go home the same day.

Your doctor will prescribe progesterone support — usually as pessaries or injections — to help prepare the uterine lining for implantation. You'll continue this until your pregnancy test and, if positive, for several weeks beyond.

The Two-Week Wait — and the Pregnancy Test

The period between transfer and your blood pregnancy test is typically 10–14 days. This is the hardest part of the cycle for most people — emotionally, not physically. Every twinge is analysed. Every absence of symptoms feels like a sign.

Try to focus on gentle routine, rest, and being kind to yourself. Symptoms (or lack of them) during this period are not reliable indicators of outcome.

Your pregnancy test will be a blood hCG test at the clinic — more accurate than a home test. Your team will guide you through what the result means and what happens next.

Ready to Start Your IVF Journey?

Understanding the IVF process step by step helps remove some of the fear that comes with the unknown. Every cycle is personalised — your medication doses, your monitoring schedule, and your embryo transfer plan will be tailored specifically to you.

If you're considering IVF or have questions about whether it's the right path for you, the team at Iswarya Fertility is here to walk you through it — clearly, compassionately, and without rushing you. Book a consultation today and take the first step with a team that understands what this journey means to you.

Frequently Asked Questions

How long does one complete IVF cycle take from start to finish?

A typical IVF cycle takes around 4–6 weeks from the start of stimulation injections to the pregnancy test. When you include the preparation phase and any pre-cycle medications, the full process from your first consultation to test day can span 6–10 weeks.

Will I need to take time off work during my IVF cycle?

Most people continue working through stimulation, but monitoring appointments (usually every 2–3 days) need to be factored in. It's advisable to take the day of egg retrieval and the day after off work, and many women prefer to rest for a day or two after embryo transfer as well.

How many eggs are usually retrieved during an IVF cycle?

This varies significantly depending on age, ovarian reserve, and how well you respond to stimulation. An average retrieval yields between 8–15 eggs, though some women retrieve fewer and others more. Not all eggs will fertilise or develop into viable embryos, which is why your team tracks each stage carefully.

Is it better to do a fresh or frozen embryo transfer?

Both approaches can be successful, and the right choice depends on your individual circumstances. Frozen embryo transfers (FET) are often recommended when hormone levels are elevated after retrieval, or when embryos are being tested genetically. Your fertility specialist will advise which option gives you the best chance of success.

What can I do to support my body during an IVF cycle?

Focus on consistent sleep, a balanced diet rich in protein and antioxidants, staying well-hydrated, and reducing high-intensity exercise during stimulation and after transfer. Managing stress — through gentle yoga, mindfulness, or simply talking to someone you trust — also makes a meaningful difference throughout the cycle.