Any chances?!

Approximately a month ago, on 27th of April the condom broke after he ejaculated. I'm on the pill, I haven't missed any pills on April and I had 7 more days until my 7 days break. I was stressing out but my period did come right on time, as heavy as usual. I am still a bit paranoid when I think about it even if I know the chances are almost impossible since I also got my period and I haven't had any early symptoms like darkened areolas or sore boobs. What do you think, ladies?