Since my gf's last period, we had sex twice. i only came the second time but i pulled out with the condom on. wore condom both times. late period...

Condoms work, but...: In a woman with regular periods, some causes of a late period include: excessive weight loss or weight gain, increased exercising, emotional stress, having an illness, traveling, medicines (like birth control pills), hormonal imbalances, etc… Seeing a doctor is a good idea if symptoms are persistent or worrisome. Pregnancy is the common cause of a missed period, if having sex. (Can do preg. test).

Pregnancy test: If a period is late, a pregnancy test should be done.