Many people wonder when they should have sex when taking Clomid. It's really not much different than getting pregnant without Clomid. The best time to have sex for pregnancy is one to two days before ovulation. Some doctors recommend using an ovulation predictor kit during Clomid cycles to help predict your most fertile days. You may also want to chart your BBT temperature. While your BBT won't be able to help you predict ovulation, it will let you know if ovulation has occurred.
According to Clomid's drug information sheet, ovulation usually occurs 5 to 10 days after the last pill. If you're on the day 3 through 7 dosing schedule, that would put your expected ovulation between days 12 and 17 of your cycle. If you're taking Clomid on days 5 through 9 of your cycle, that would put expected ovulation between days 14 and 19.
The best thing to do is to start having sex every other day for one week, starting on the fifth day after taking the last pill. Also, if you use an ovulation predictor kit, you may want to have sex everyday when the kit indicates that ovulation is around the corner.
It's important to keep in mind that these are not guaranteed days for ovulation, but only the most common times of ovulation for Clomid patients. It's also important to keep in mind that the time you usually ovulate from cycle to cycle may be different when taking Clomid. You may ovulate earlier or later than you usually do. However, after Clomid treatment has started, ovulation will usually occur around the same time each treatment cycle.
Source:
Clomid Drug Information Sheet. Sanofi-Aventis. Accessed October 6, 2008. http://products.sanofi-aventis.us/clomid/clomid.pdf

