Yes, definitely possible.
Peeing after sex is always a great idea, but will have zero impact on if you get pregnant or not. Sperm can also survive in the reproductive tract waiting for an egg for up to 5 days. Test in two weeks, I hope you get the result you want
Sperm can live inside the vagina for up to 6 days, so yes there is a chance. Pee comes out of a different hole so has no impact but it's a good idea to pee after sex anyway as this helps to avoid UTIs.
Of course
There's always a chance yes.