question: I had surgery about 6 weeks ago, and around that time I got updated on my birth control shot. I am on the depo shot but was also on antibiotics for an infection. A day after my antibiotics ran out I had sex with my boyfriend and we didn't use protection. A few weeks later I started feeling nauseous and tired all the time. Lately I have been craving weird foods and eating more than normal... Also when i got to the bathroom i urinate little brown pieces of tissue... Could my birth control have gotten messed up from my antibiotics and could i be pregnant?