Hey I'm 18 years old and I have been on the birth control Nexplanon for 2 years now and last month I got my mollers pulled and was on an antibiotic which I know can interfere with my birth control. Of course on accident I had unprotected sex with my boyfriend and now a month later I feel like I'm having pregnancy symptoms. Very sore and tender breast, back and stomach cramps, nauseated by many of smells, and white or milky discharge, I haven't took a pregnancy test yet I wanted to get someone's opinion first.. Thanks for the help!