LOSING MY SHIZ

Girls I need help, my period is late by a couple of days. I took plan b last month because of a Condom breaking and my period came, I've had sex a couple times since then but with a Condom and a couple of weeks ago he put just the tip in for like 5-10 seconds, then on Thursday I had sex again and he put it in without a Condom but didn't come and then we used a condom when he came, I've had people lecturing me and saying that it was dumb for me to do that and I know but what are the chances of me being pregnant?! My period is always usually somewhat regular. I just need some advice 😞