I'm 18 years old, and one day, I was making out with a guy. I was sitting on him (straddle) and all of our clothes were on. He had shorts and underwear and I also had underwear and denim shorts. There was clothes-to clothes rubbing. I am so scared though, that sperm can pass through clothing, and I'm afraid I could be pregnant. This happened on june 21st, and I have gotten my period in july and august. A lot of things I read on the internet freak me out. I need help. I feel like every day my stomach is getting bigger and bigger, but I think i'm just psyching myself out. Can sperm pass through clothes if I am sitting in that way? I'm so worried. Please let me know. Thank you.