Trying to conceive

Jasmine
Last month, I stopped taking my monessa birth control pills half way through the package. My fiancé and I are very sexually active. We have sex everyday. I have had odd cravings, been very moody, had a lot of nausea, diarrhea, and breast tenderness. But, I've took 3 tests in the past 2 weeks and they've all came out negative. Does anyone have an explanation or can help?