Last day of fertile window silpup

Me and my partner had sex. I didn't realize it was my last day of the fertile window. 2 questions: 1. Is it still worth taking an ella pill?

2. How likely is it to get pregnant the day after ovulation?

He did not ejactulate inside me. I know it doesn't make a difference it only takes 1.

I'm still within 120hrs. I had some weird cm that looked like tissue paper. It was dry.

I'm not here for "scared straight answers." I just need solid advice.

Please

Thanks

Anon