really need some advice!!

I started having sex with my boyfriend last month, I am on birth control and I am very good about taking it. I've been on birth control since the middle of March but leading up to this past month I had not been great at taking it, I would miss days here and there and then have to make them up. But since we started having sex, I never miss a day and take it at 10am every morning. I was supposed to get my period on the 9th and I haven't. I started taking my hormone pills again yesterday. So I guess I'm just wondering if my taking it so well over this month could effect my period, or if I should be worried. I've also been stressing about which I know doesn't help. We don't use condoms but he pulls out, I know it's not the best method. Any advice for me?