So I've been on BC for all my life since I pretty much got my official period. I went from pills to Depo shot every three months. I took 2 shots. I missed my last. So my period came back the 11/8 till the 15ish. I had UP intercourse two out of the whole month (16 & 17th) on my fertile window ! I was suppose to ovulate the 22nd. But my period is so out of whack I can go months with bleeding and months without recently I've been bleeding (thought it was uti) and it would stop. Then turn really brown then start again hours later. Been on and off. Took 2 tests they came out negative. I've been nauseous mainly in the morning or afternoon. I have strong scent smells. My appiete went from VERY hungry to not wanting nothing ! I have migraines constantly. What could this be ? Any suggestions ? Calendar says 4 DPO but not for sure. Thanks all!