Female, 31, trying to conceive for over a year. Started with nausea 4 days after ovulation (used an ovuation test), this continued for a few days. Had a couple days rest then nausea for a few more days. Period due 2 days ago, didn t arrive. Negative pregnancy test, nausea almost gone. Now have pain and i thought I could feel a lump in lower right groin. Sharp pain coming and going. Any ideas?