Should i Be worried?

I am in my third month of BC & i had unprotected sex on last week (without a condom but i daily take birth control pill). On the app I️t say my period should have started earlier this week but I️t hasn’t . On my actually birth control pack my period should not start until Last week of April. Idk if i should be worried or not. I know that BC protects you from pregnancies bt this was the first time he cummed inside me and I’m a little worried. What do y’all think?