I hear people talking about foreplay and pretended like I knew but I have never really understood what it was. Can you help?

The truth is: I am scared. But also anxious, excited, curious. My boyfriend and I have an attraction unlike any I've ever known. He always tells me to let him know if I want to stop, and then he will stop. I want to be intimate with him, and I've definitely thought about it, but it could always be too much too soon. I feel we may engage in sex soon. I don't really know how to do anything, though. I think I'm ready for it, but we're both still young, in high school. I'm afraid for what will happen, for what I am or am not capable of. I want to make him happy, but not always at the cost of myself. I cannot get pregnant; this is my forefront concern. Sex has always been displayed as something funny by my friends, and dangerous by my elders. To me, it's more a... beautiful thing? I'm not sure. With my less than adequate experience, I honestly don't know. I know that I love him; is that enough?

My friends and I have been giving blow jobs to our boyfriends at school instead of having sex with them. This year we're freshmen and my best friend told me of a junior boy with a really big D. We're not sluts or anything, but we have talked it over quite a few times and wanted to see if it was true. During Christmas break we went to a party and even though we were really nervous, we cornered him in the basement and asked to see it. He agreed to show it to us as long as we gave him a hand job. We weren't keen on the idea, but agreed. He was huge, twice as big as our boyfriends easily and we could both fit both of our hands on it at once. Just as the boy was ready to shoot his load, he said one of us would have to swallow. Neither of us wanted to, but he said we had to and he thrust himself into my mouth as he ejaculated. I was embarrassed and nervous and didn't know what to do, so I finally swallowed an entire mouthful of what tasted like mucus. We left the party immediately and I tried to throw up, but couldn't. I'm not sick yet, but could swallowing his load do something to me?

I' m 19 and have never had full penetrative sex. However I have fooled around with a boy two days ago. We didn't have sex but we were quite close to doing so and now I'm very worried about the possibility of being pregnant. I was due on my period a week ago and I still havent come on. Is it possible to get pregnant without actually having sex? We were both naked and pleasuring each other in other means and he wasnt wearing a condom.