It is advisable for women with ovulation malfunction and whose tubal permeability is in good conditions. This procedure is also used when, because of moral or religious aspects, the couple do not turn to in vitro fertilisation or artificial insemination treatments.
The ovulation cycle and the sexual intercourse are synchronised. On the one hand, the endometrium has to be prepared by means of an ovarian stimulation and, on the other hand, the exact date for the ovulation has to be established so the couple knows the best days to have sexual intercourse.
There are different ways of doing this procedure:
Sometimes, it is not necessary to turn to drugs. The follicular growth is monitored through ultrasounds. An acute rise of the luteinising hormone (‘LH surge’) which is a hormone produced by gonadotroph cells, triggers the ovulation so it starts and it is then when it is the best moment to have sexual intercourse. The LH can be detected in the urine or in the blood by a series of tests that have to be run as of the ninth day of the menstrual cycle.
The woman gets an injection of the FSH and HMG gonadotropins for 8 to 14 days so these hormones can have an effect on the gonads.
Ultrasounds and blood tests are made to monitor the growth and maturation of the follicles, so that the best day to have intercourse can be scheduled.
At times, the woman is orally administered with clomifene and other anti-prolactin drugs to treat women’s ovulatory dysfunctions.
Having scheduled sex implies a drop-off in the stress levels caused by the pressure generated by the waiting of an infertility treatment. This scheduled intercourse also improves the pregnancy rates in women with disovulation, i.e., poor ovulation or irregular ovulation. The main drawback is that the success rate is very low, about 10%.
It is recommended to employ this technique during the first 3-4 months, because most of the pregnancies achieved through this procedure occur in the first months.