Hi uhm im 17 about to be 18 and i lost my virginity on august 15th. Its been a week already and my period is late. It's been late before but I'm nervous because i had sex this time. I'm not ready to have a child or able to take care of one. I know that when you go into a situation where you have sex you have to always be aware that pregnancy is a possibility. My entire life I've boast about how i would do all this checking for std's or aids and that i would have to be dating them awhile. But I ended up having sex with an ex who was coming off a meth and cocaine addiction. I know he wouldn't be able to support me and i don't want to disappoint my parents. At the time it seemed like a good idea like it made sense. Now I'm really regretting it and wondering why on earth i would do that. I was on birth control but truth be told i hadn't been keeping up on it and took 3 pills the day before and three the morning of the day i had sex. Ironically enough i lost my virginity around 4:20PM. We used protection and he wasn't in me for long he was kind of fast from what i expected. I freaked out about it when i got home after i realized what a dumbass thing i just did. I usually get my period at the beginning and end of a month it varies on what day and such. There has been times where i didn't get my period till the beginning of the next month but i wasn't having sex then. Is there a pill i can take to ensure I'm not pregnant? Or is there another way i can ensure I'm not pregnant?