Okayy so I'm 17, and me and my boyfriend (of over a year) have been sexually active for oh...I don't know...5 months, maybe? We have only done it a few times, and we both lost our virginity to each other. I have never had sex without a condom, but my last 3 or 4 periods have been late and they only last 2 or 3 days and they are very light. Could I be pregnant? Also, I keep getting a thick white discharge in my underwear. It's been going on for a while, I'm pretty sure since before we started having sex. It doesn't smell super strong, but there is definitely a smell. I change my underwear every morning and night, and wash my vag good everyday so it's clean. Any ideas?