I have normal periods that is the same day every month. I haven't had my period in 4 months. I have all the symptoms of pregnancy; morning sickness, tender breast, nipples getting bigger and changing color, lower back pains, and I swear I feel movement. I have taken a test every month and it's a different brand every time but they have all came back negative. My ex and me were trying to conceive. I don't know what is going on or what to do.