Pregnancy scare

Hi! So my boyfriend and I just started having sec less than a year ago, and he’s my first sexual partner. We had sex last week, with a condom but he came inside the condom without pulling out. It’s around my period time and I normally get very tender breasts and cramps, but nothing is happening. The app says there’s still 5 red days so maybe I am late? I’m not sure what to think, but it is really worrying me. If you could let me know what I should think, of really appreciate it.