Hi, I had unprotected sex with my girlfriend 2 time in 2 weeks, to be on safer side, on first time I gave her contraceptive pill within 12 hr, and on 2nd time I gave contraceptive pill within an hour respectively. Is there any chance of my girlfriend getting pregnant?

There's always a chance. No birth control is 100% effective.

Bt is there any problem if contraceptive pill used within an hour.

What 'contraceptive' pill did you give her?

Its I-pill