In this article 6 sections
IVF, or in vitro fertilisation, is a treatment in which eggs are collected and fertilised with sperm in a laboratory. A suitable embryo may then be transferred to the uterus, either in the same treatment cycle or later after freezing. Understanding these stages can make the process feel more manageable, even though the exact plan differs between patients.
An IVF cycle is not a promise that every stage will be reached. Some follicles do not yield an egg, some eggs do not fertilise and some embryos stop developing. The team should explain these possibilities before treatment so that changing numbers are understood in context.
Assessment and planning
The first stage reviews your medical history, fertility results and any earlier treatment. The doctor may consider ovarian reserve, ultrasound findings, semen analysis and other tests needed for safe care. This is also the time to discuss medicines, costs, consent and the plan if the response is different from expected.
Ask whether the proposed treatment includes standard IVF or ICSI, and whether a fresh transfer is likely. The reasons should relate to your assessment rather than being presented as a package everyone needs. You should receive written instructions and contact details for problems during treatment.
Stimulating and monitoring the ovaries
Prescribed hormone medicines encourage follicles to develop in the ovaries. Ultrasound scans, and sometimes blood tests, help the doctor monitor the response and adjust the plan. The medicine dose and number of appointments depend on how your ovaries respond.
When development is suitable, a timed medicine prepares the eggs for collection. Its timing matters, so contact the clinic if you miss or are unsure about a dose rather than improvising. If the response is too low or too high, the doctor may change or cancel the cycle for a clinical reason.
Egg collection and fertilisation
Eggs are collected through a procedure usually performed with ultrasound guidance and sedation or anaesthesia according to the clinic's practice. The laboratory assesses the eggs, and sperm are prepared. With standard IVF, eggs and sperm are placed together; with ICSI, a sperm is injected into each suitable mature egg.
The team will tell you how many eggs were collected and later how many fertilised. A fall in numbers is common and does not mean someone did something wrong. Ask how and when updates will be provided, especially if decisions about transfer or freezing may change.
Embryo development and transfer
Embryos are observed in the laboratory, and the team assesses which are suitable for transfer or freezing. A fresh transfer may be possible, but sometimes all suitable embryos are frozen for a later cycle. This can be recommended for safety or because later transfer is considered more appropriate.
Transfer places an embryo into the uterus through a thin catheter. It is not the same as implantation, which may or may not happen afterwards. The number of embryos transferred should be discussed carefully because transferring more than one can increase the risk of a multiple pregnancy.
After treatment and the pregnancy test
Follow the doctor's instructions about medicines and use the pregnancy-test date provided by the clinic. Testing too early or interpreting symptoms can give misleading answers. Prescribed support medicines should not be stopped just because you have spotting or think treatment has not worked.
Ask what discomfort is expected after collection and what needs urgent attention. Increasing abdominal swelling, severe pain, persistent vomiting, reduced urine, faintness or breathing difficulty can indicate a complication and need prompt assessment. The clinic should have a clear route for urgent advice, including outside office hours.
Reviewing the outcome
A positive test usually leads to further follow-up and an ultrasound at the appropriate time. A negative result should lead to a review of what happened and what options remain, including any frozen embryos. Neither outcome should leave you without instructions about medicines and contact arrangements.
The next step may be another transfer, a different plan, further assessment or a pause. Ask the team to explain what was learned rather than simply repeating or changing everything. A useful review connects the treatment record with a realistic discussion of future choices.