I Had Sex With My Girl Without Protection. At The

I had sex with my girl without protection. At the time of ejacuation I pulled out my penis and cummed in someother place not very close to her. I thought we are good. Its been 14 days from that incident. Now she says that her periods are late by 6 days. I think my pre cum made her pregnant. Is she pregnant?
What to do now cz we both are students.