I'm 20 years old and I've been having vaginal pain during sex so the dr (on Wednesday ) gave me a prescription for gabapentin. I started gabapentin Thursday(2 days ago), I'm also taking ortho tri cyclen lo birth control and been on it for 8 months, I'm on the green pills telling me I'm starting, I have 4 pills left and haven't started my period yet. Can gabapentin delay or stop me from having my period while I'm taking it?