No cum, plan b

Anne

I had unprotected sex a day after the end of the green fertile window thing and <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> told me it was low fertility. I’m not on the pill or any bc and he didn’t cum in me. I took a plan b around 12 ish hours after. Do y’all think I’m ok? It says I was supposed to get my period today but it’s still not here nor do I feel any symptoms.