Pls help

So I had sex with a condom tonight and he said the condom broke right as he pulled out but swore nothing got in me or anything. There was just a tiny bit of cum on my butt. <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> says I’m supposed to get my period in 8 days and I know I ovulated last week so if y’all could give me advice and calm my nerves that would be much appreciated...