I am on depo and haven't taken any anti iotics at all....but ive had severe heart burn for over a week. My weights been up and down the past few weeks, I've had headaches at least every other day for about a week and my belly is pouched out, and even more when i eat. I haven't been sick but my mom swears I'm pregnant but 2 tests say no. Opinions please. And i dont have a period with the shot. :/