I am 19 years old and had sex the last time 3 months ago. I am on birth control yet I admittedly don't always take it perfectly. I have had two periods since I had sex last, but I'm freaking myself out because I've gained weight and have been feeling sick. At 3 months you just start to show and when I relax my stomach I swear I see a baby bump. I am on the pill and my boyfriend pulled out and I have had two periods. Is there any reason for me to be panicing?