Ovulation stimulating drugs are ovulation stimulating drugs. If you have taken ovulation medication for 5 days, you can usually go for follicle testing around 2-3 days after stopping the medication, or in some cases, around 3-5 days after stopping the medication. The timing of follicle monitoring varies for each individual as there are individual differences in follicle growth. Usually, you need to start ovulation medications such as clomiphene citrate capsules and letrozole on day 3-5 of your menstrual cycle. Women usually ovulate 14 days before their next menstrual cycle and usually need to start monitoring follicle growth 2-3 days earlier. Usually by the 5th day of ovulation treatment, most people can have follicles of 0.8-1cm, while follicles of 1.8-2.0cm are mature and have the ability to form fertilized eggs. As different people respond differently to ovulation promotion drugs and start ovulation promotion at different times, there is some variation in the size of follicle development. Usually, follicles of 1cm or more can be monitored about 3 days after ovulation promotion treatment has stopped. In some people, the ovulation promotion is late and it is possible that the follicles may have grown to over 1cm by day 5 of the ovulation promotion treatment, at which point monitoring may be needed earlier. The same person can usually find the most suitable monitoring time after several monitoring sessions. After the first ultrasound test, it is usually necessary to repeat the ultrasound at 1-2 days interval to determine the follicle growth as well as to catch the follicle development at the right time to guide intercourse and conception. In addition, the ultrasound needs to be repeated 48-72 hours after the follicles have matured to determine whether the follicles are expelled. Ovulation stimulating drugs are hormonal drugs and their long-term use is very harmful to women’s ovaries, so they need to be used carefully under the guidance of a doctor.