My husband & I used an ovulation calandar. About a week after it said I had ovulated I started getting lower stomach cramps usually around night time for a whole week. My period was 8 days late. I spotted for 2 days & then started what I believed to be my period. I took home pregnancy tests before and after my period & they were all negative. But now I'm having cravings, stomach cramps from time to time, I'm irritable & tired, and I'm bloated but pregnancy tests are still negative. Im going to see my family doctor in a couple of weeks after I'm supposed to start my next period, but I'm curious to have an outside opinion of whether I could be. Thanks.