On Clomid.

Calvin
When will ovulation occur when u on Clomid? I started Clomid on day 4 of period for 5 days. Which ended Sunday. The entire week I have sore breasts, nausea, a runny tummy, and back pain. Is this a sign of ovulation? Been testing for ovulation since Tuesday and negative. Will I definitely ovulate with Clomid? Taking 25mg