Is it possible to get pregnant from 5 seconds of sex?
If he didn't c um?

Yes, it is very possible but not probable.

But like now I'm late and have some symptoms and I'm starting to think it could be very possible indeed

If you are late its time to get a test.

It is possible... but unlikely...

Even if he didn't ejaculate, men release pre-ejaculate which may contain some sperm, and it only take one of those little guys to get pregnant.

If you are late, you need to ake a HPT.