For the last two months I havnt had a period. I been on bc for a while and I didn't get a period in Feb. In went and took a preg.test at a clinc and it came back neg. The doc told me not to take any more pills so I havnt and my period still haven't came on. I didn't have any pms symptoms in Feb jus sharp pains in my stomach that last for a couple seconds.and morning sickness. In march I was having all pms symptoms.and Bloated and morning sickness. I never get morning symptoms. And always sleepy. I have taken 4 tests. I hv regular periods and neva missed a period. So wat could it be. The symptoms only lasts for 2 weeks. But I still have breast tenderness and use the bathroom more . What could be goin on?