SAFE SEX

hi okay so I'm always get super panicked and nervous about everything associated to sex and all of that stuff and yes before anyone tells me what I already know, I have taken health and I'm not stupid and I honestly just want someone to calm me down. I'm 17 and I legit just lost my virginity to my best friend only 2 days ago. We did use protection and he did pull out when he came but like the freaked out person I am, I'm always nervous at something that could happen. I'm suppose to get my period in 4 days but I'm usually NEVER on time so its not going to calm my nerves any more than I usually can when I was a virgin. I'm not on the pill but do you think that I will be okay? I know I should probably get on birth control but my parents do not know about my relationship and I don't want to cause an issue. Oh and when we were done, he did blow it up to show me that there were no leaks just to calm my nerves but idk, someone talk me down my anxiety