period cycle

I was supposed to get my period today , but I still have not gotten it yet. The last time I had sex was protected , but I had unprotected sex on my period with my bf a week before the last time we had it. He always stops and lets me finish him off with my hands. It always takes a little because we’re careful about it, so it’s not like he immediately finished as soon as I started. Should I be worried about my period ?