He took my virginity

Ok so I am 15 I lost my virginity yesterday to my boyfriend of 6 months. We’d had conversations about sex before, and I told him that I didn’t want to do anything until i was 16 (the age of consent where I live) and also that i didn’t feel like I was ready for it yet anyway (the thought of getting pregnant totally terrifies me, as well as being scared of it hurting), and he was completely supportive and told me that we could take things at whatever pace I was comfortable with.

Then yesterday he was fingering me (which he’d done once before) and just sort of put it in without warning me (and without a condom, which we’d both agreed before was 100% necessary) and started to move. At first I don’t think I fully comprehend what was happening, but after about 30 seconds of just lying there I pushed him away and he immediately stopped. He apologised straight away and I told him it was ok but I felt awful the rest of the day.

Later on while we were watching a film I just burst into tears and he asked what was wrong and I explained that I felt like he had crossed a massive line and I was kind of terrified. He then also got upset and started telling me how guilty he felt and that he wasn’t thinking and he’s that sorry.

I just don’t know what to do now. I trusted him so much and he has completely ruined that by going against what he knew I wanted. I also kind of feel guilty because I know I’ve done something which is technically illegal (not that lots of my friends haven’t done it anyway).

Overall I’d just be extremely grateful if anyone could give me any advice at all as I’m not sure if I’m making this into too big of a deal by getting so worked up about it.