What happens if the condom slips off???

I'm a nearly 16 year old woman who needs help...A while ago and recently, my boyfriend fingered me vaginal to anal to vaginal, but not sex. I've recently read that you can get serious vaginal infections from passing bacteria from the anus to the vagina. Am I OK to leave it be because it wasn't sex, or should I still get it checked out, just to be on the safe side?

my period is due any day now. and about 10 days ago me and my boyfriend were fooling around, and he put his penis in me only for about 15 seconds. i know there is sperm in pre cum and thats why im scared. is there a big chance i could be pregnant from that? he's not very worried.. but i am. i havent been getting as many signs for my period as i usually do.. and i should be getting it in the next 2 days. im just worried, but since it was only for about 15 seconds i dont know if theres a big chance. please help!

I am uncircumcised and I was wondering, there isn't anyway that if you have intercourse that sperm won't come out while inside of her unless you reach orgasm right? Like if I'm having sex with a girl and I'm not using a condom there's no way that anything could seep out without reaching a orgasm. Just want to make sure, because condoms don't feel the best when having intercourse.