Am I pregnant?

The other night I had sex with my partner, he assured me that he’d pull out and he was GREAT at it.

But when he pulled out he came on my vagina, and when I went home I went to pee to prevent a uti, and I wiped and I was leaking.

Was that just from me? Or him?

He also texted me and said

“Take a plan b just in case.” But he followed up with also saying “I’m sure I didn’t in you though.”

Should I be worried?