Iam trying for pregnacy. I took letrozole and ovulation occurred on cd16. Iam in dpo 15 am feeling cramps and pressure in lower abdomen and uterus and some time in pelvis areas. Silimar like periods cramps. But this iam feeling like liquid pressure in lower abdomen when press hand against by lower belly. I didn't take pregnancy test yet. My question why iam feeling liquid type pressure in lower abdomen.