Condoms 🤓

Okay ladies, so my SO and I have been using condoms since we started having sex and nothing has happened except for the few times we didn't when i kept having pregnancy scares! We use condoms and he pulls out before he cums. But for some reason I still panic when my period is approaching 😖 and im always late . Can someone give me a little reassurance ? 😌 Also , i'm traveling out of state next week , which is around the time my period is suppose to come , would this affect my cycle ?