Kinda Scared but not really :/

K

So me and my boyfriend had sex Wednesday and the condom broke. But he didn’t nut, he just had precum in the condom. Then immediately I went to take a Plan B. So will my ovulation cycle be delayed or my period be delayed.l? My period is supposed to start in 3-4 weeks. Also do u guys think I’m okay? I jus need a peace of mind. 😖