Step 1: The first day when IVF treatment is started is the first day of the period of the woman. The patient will be given the advice to understand the first day of the period by their healthcare provider.
Step 2: From that very day the process of stimulation will start. In natural conditions, one ovary produces one egg in the monthly cycle and the second ovary shall produce the egg in the next month. But in this case, the patient will be given medications for a week or two to produce more eggs by stimulating the follicles in the ovaries. Depending on the patient the doctor may prescribe 1-2 injections per cycle or even per day. The fertility nurse teaches the patient to give the injection and in no time patients will grow confident about giving it by themselves.
The medications used for follicle stimulations are
- Luteinizing hormone (LH)
- Follicle-stimulating hormone (FSH)
The medical team keeps an eye on the ovaries to see how the eggs are produced via transvaginal ultrasounds and blood tests. The team will closely monitor the trigger injection just before the end of the stimulation phase. This injection prepares the egg for ovulation, which occurs naturally during periods. However, the doctor will allow the egg to be recovered before ovulation.
Step 3: This step takes about half an hour as the patient is kept in general anesthesia and the eggs will be collected from the ovaries. An ultrasound needle is passed through the ovary to remove the fluid containing the eggs from the follicles. The average numbers of eggs collected vary from 8-15.
Step 4: Sperm collection can be from the male member who wishes to be the biological father on that very morning of egg retrieval, or frozen sperms from any donor can be used which has undergone all the necessary tests in the lab.
The sperm is washed in a special mixture while the scientists spot out the best quality sperm under the microscope. Perfectly healthy sperm is neither too thick nor too thin and the tail is not too long or too short. The best sperm is selected to be introduced to the eggs.
Step 5: The scientists now find out the eggs collected in the fluid and placed in a petri dish. It is important to allow the fertilization to happen immediately where the sperm will find out the eggs naturally, just like in the environment of the body.
Step 6: As soon as the sperm fertilizes the egg, the product is called an embryo. Now, this embryo is shifted in an incubator where the growth will be facilitated perfectly. This will be containing amino acid just similar to the body environment. This embryo will be monitored for 5 to 6 days to see that a 2 to 3 cell embryo is formed in 2 days and 6 to 8 cell embryo is formed on day 3. But not all eggs may reach the embryo stage due to unhealthy sperm or problematic egg. The medical team waits for the embryo to develop and inform the patient accordingly.
Stage 7: The patient will be asked to drink water and get her bladder full. With ultrasound technology, the embryo will be transferred to the uterus and be implanted in the perfect lining spot. This embryo is placed in a catheter with the minimum disturbance caused and placed without any anesthetic involved inside the cervix, and into the uterus. The patient can get up within 5 minutes and continue the day normally without any fear of losing the embryo while standing or during urinating.
The size of the embryo is 0.1 mm and the doctor can place it within a range of 1 mm. If it is placed incorrectly then the embryo can get wrongly implanted anywhere other than the uterus.
Step 8: After two weeks the patient will be tested for their hormonal levels (human chorionic gonadotropin hormone) in the bloodstream which indicates a positive pregnancy test.