Condom was living in my vagina

So I had sex with with this guy I have been talking to and we was both drunk and the sex wasn't what I was expecting for the first time having sex with him. So the whole time he kept switching condoms for some reason it just kept slipping off and 3 days late to was in the bathroom and I had looked down and a condom had literally fallen out my vagina. This literally is freaking me out I checked my app period tracker and I was fertile when we had sex and in the condom there was semen in it and I'm not due for my period until 5 days from today idk if I should wait it out or take a pregnancy test ☹. Is this even normal to have a condom be in your vagina for 3 days after sex????