My boyfriend and I had sex twice about a week before my period was due. He didn't ejaculate in me either time but I'm aware of the risks of pre-ejaculation. I took a pill a couple of hours later, but hadn't taken it regularly either before or after having sex. I did have usual period pains I tend to experience such a cramps about three or four days after having sex, but over the past couple of days they've stopped. I'm not sure if I should wait to see if my period comes, or start taking my pill regularly straight away?