18 HS Senior.. Still a Virgin

I just turned 18 this past January and I'm still a virgin. I don't see an issue with it, it's just I haven't found the right person where I feel comfortable enough to go all the way with. I have had oral sex (gave and received) but never vaginal. It seems like everyone is doing it and I kinda feel left out sometimes.I don't want to rush, I just don't feel "ready". Nor do I trust anyone to have a part of me. I know it sounds corny, but I feel like sex is a big deal , your giving someone access to your body. Anyway I start college soon and I don't want to ruin any chances of me following my dreams by getting pregnant. I know condoms aren't 100%. Besides my mother doesn't want to put me on Birth control bc she feels that she trusts me enough to not do anything wild.. And everyone that I know that is in BC has gotten fat or had crazy symptoms and still got pregnant. Also after or midway having oral sex or doing something semi-sexual I always feel guilty and stop.. Idk what it is. Or what's wrong it's just all so confusing.