Help please

I lost my pill pack (combo pills) and didn’t take pills for two days after my “period had ended” I got my last period July 22nd & had sex three days after & my boyfriend cummed inside of me. I ended up taking a plan b since I had missed a couple pills. Well if I end up ovulating because of the fact I missed pills will I end up pregnant? I’m set to ovulate according to the eve app aug 2-8. He cummed in me about 5 days before my expected ovulation day & sperm lives for up to 5 days. Am I overthinking it? Will the plan b protect me?