I'm 17 me and my girlfriend were dry humping I had pants on and my shorts slightly off and she had jeans and pants on. I ejaculated and it went through my pants and it went through her jeans and pant. It was only a small patch on the jeans but she said it was really wet, I don't understand how it is worse on the pants then the jeans. It's been 2 weeks now and she said she missed her period 6 days ago but she is experiencing stomach pains. Is she pregnant or is it a late period?