How Long Does an IVF Cycle Take?

What Is An IVF Cycle And How Long Does It Take?

IVF is a type of assisted reproductive technology (ART) in which fertilisation takes place outside the woman’s body. During the process, eggs are retrieved from the ovaries and fertilised with sperm in a laboratory. The resulting embryos are then placed in the uterus to achieve pregnancy. It is among the most commonly employed fertility techniques used around the globe.

Simply put, an IVF cycle can take around 15-20 days from the start of medications to embryo transfer, in the case of a fresh transfer. However, the entire process, from the initial consultation and preparation to successful conception, can take much longer. On the other hand, Frozen Embryo Transfer may take an additional 4-6 weeks to complete.

Breaking Down the IVF Timeline

Beginning with the first appointment with an infertility specialist, the entire process of an IVF cycle includes several phases, which are:

Stage One: First Visit and Infertility Tests:

The first phase of IVF treatment begins with visiting a specialist. The expert will start off by reviewing your medical history and your goals to determine whether IVF is the right way forward for you. This step generally includes blood tests for hormone levels (FSH, AMH, oestradiol), ultrasounds of the uterus and ovaries, and a semen analysis. This phase can take anywhere between 2 and 4 weeks.

Stage Two - Pre-Cycle Preparation:

Some doctors may recommend a short dose of oral contraceptive pills before beginning the stimulation. This can increase the number of eggs available for retrieval. While this phase usually takes 1-2 weeks, it can be optional.

Stage Three- Ovarian Stimulation:

The ovarian stimulation process starts once the treatment strategy has been established. It takes about 10-14 days. The process will start two or three days into the menstrual cycle. In this stage, the patient will be required to self-administer hormonal injections. This process ensures the production of multiple eggs by the ovary rather than a single egg.

Ultrasound and blood tests are conducted every two days to determine the reaction of the patient to drugs. Depending on the test results, the doctor can increase the medication dosage.

Stage Four - Egg Retrieval:

This is quick and generally well tolerated under sedation. Once the follicles have matured, a trigger injection is administered, and the eggs are retrieved 36 hours later. After the retrieval is complete, the patient will wake up within 10 to 15 minutes. This phase will take 1 day plus the required recovery time.

Stage Five – Fertilisation and Embryo Development:

Conventionally, sperm are placed near the eggs and allowed to fertilise naturally. In intracytoplasmic sperm injection (ICSI), though, a single sperm is injected directly into the egg for fertilisation. Nowadays, embryos are well cared for in the lab for 5-6 days until they reach the blastocyst stage. After that, experts can determine which which embryos are most suitable and can be transferred into the uterus. This stage generally takes around 3-6 days.

Stage Six - Embryo Transfer:

This part is fairly simple, as the procedure only takes a few minutes to complete. An embryologist places the healthy embryo into a catheter, which is a small tube, and the fertility specialist then places the catheter into the uterus through the cervix. No anaesthesia is required, and this phase takes only one day.

After 10-14 days, a blood test is performed to check hCG levels, a hormone that signals early pregnancy.

Factors That May Delay The Process

The ultimate aim of all would-be parents is a successful IVF. However, several factors can influence and disrupt the process, ultimately delaying it. They are listed below:

• Age Factor: For older patients, further observation is needed before moving forward.
• Response to drugs: Poor response to stimulation drugs will either cause delays or even cancel the treatment cycle.
• Genetic testing procedure: When genetic testing is required, this prolongs the whole process, causing the cycle to pause.
• Health Conditions: Health disorders such as endometriosis, PCOS or any other uterine disease will cause a delay in the process.
• Clinic Protocol: Each clinic will have its own protocol for timing.
• Natural Menstrual Cycle: Timing must also consider the natural menstrual cycle.

Conclusion

The IVF procedure is not instantaneous; it takes time, as the process occurs in stages over a number of weeks or even a few months, depending on other procedures. An average IVF procedure takes about six weeks, but when we factor in consultations, preparation, embryo freezing, and related steps, it can take between two and three months. Knowing how long each process might take beforehand will ensure you are well-prepared for the whole procedure and have sufficient time to attend each appointment and make arrangements in case of complications.