Cum life😂

Needing some advice tried to Google but failed. Any who! How long does cum 'live' for after ejaculation? 
FWB & I recently had unprotected sex and he pulled out to cum but then slid it back inside me after and had some still on his shlong....
We didn't think he blew inside me but all day I've been having some come out every time I wee and have had some come out into my panties. I know it's definitely not discharge cause it's so thick and white looking which I never get unless I'm due my period and I'm not due for another week. 
I am on the pill however I still get freaked out about these things lol