I was put on clomid in Jan due to fact of not ovulating very well. I noticed yesterday while having sex that I had quite a bit of pain while I was on top. Sorry to be blunt but that's the only time it really hurt. My husband also said he noticed it felt different, almost like he felt something. Does your uterus swell during ovulation? Also I have noticed cramping in my lower abomen right side. I am assuming this could be ovulation cramps.