I recently started taking birth control pills 3 months ago. I had sex for the first time about a month ago. A few days before that my bf and i fooled around and there was some penetration without a condom, but when the time came for real sex, he had one on. I had a short, light period 2 days later but was not on my placebo pills... I have been having random days of spotting recently and am worried I could be pregnant. Is this possible or is my body still getting used to the pills?