Protected sex followed by un-protected, chances of pregnancy?

I had sex with my girlfriend with a condom on. After I ejaculated, I removed the condom carefully and wiped myself dry with a tissue.

About an hour later, we had unprotected sex, I did NOT ejaculate during sex. We stopped before that. She had also...

taken a dose of plan b just 2 days ago.

What are the chances of pregnancy ?
pls help.

there is semen in our pre-cum which can get her pregnant
as for plan b
that needs to be taken within 3 days of haing sex
if she took it later than that it wont work
and it also gets less effective the longer you dont take it during the 3 days
to find out if shes pregnant
tell her to take a pregnancy test 2-3 weeks after you had sex
(any sooner and the results won’t be accurate)
in the morning with your first pee is the best time
and take it when your period is due
alternatively, see a doctor for a blood test
this will both let you find out quicker and give you more accurate results