Girls… I think I was sexually abused

So I had the guy over the other day and I foolishly thought we were simply just making out. Then i was forced to give head and he had sex with me. He was wearing a condom at first. Then when I saw him I let him know I was not on birth control but he just wouldn’t listen because he was sexually frustrated that his penis with the condom kept slipping out. Well pullout game was weak and he started cumming in me and grabbed my face and finished cumming on my face/mouth. I know this was not consensual and this is considered rape. But I’m worried about pregnancy since I wasn’t on birth control and he wasn’t wearing a condom when he came. I’m about to take plan b right now (after 7 hours)… I’m so scared I’m pregnant… and I just dont know what to do… any advice?

Please right now not being pregnant is my priority I’m a second year college student who just met the guy when that happened.