I've been on Microgestin Fe 1/20 and I've been put on some antibiotics also had unprotected sex(he did the pull out "method.") Any chances of pregnancy? It's been about a week since the last time of any sexual activity. I had stop taking the antibiotics on Sunday but still taking the birth control and Zoloft 50mg. I've been taking the pill for almost 2 months and Zoloft for about 4 months. Feels like I'm having some symptoms of pregnancy (sore breast, tiredness, headaches, feeling sick to stomach and mood swings) or am I still adjusting to the pill still?