Please help me😩🤦🏽‍♀️

So my period for this month was unusual because I usually come on for 4 days but this month I started spotting on the first day,had medium flow for about 3 days and then spotted again for 2 days so all together it was 6 days. Anyway I started my fertile window on the 13th and had unprotected sex and he ejaculated inside me on 2 of those days🤦🏽‍♀️ my actual ovulation day was the 18th and my fertility window ended the 19th and which I had unprotected sex 6:00am the 19th but he pulled out not sure if it all came out or not but I took a my way pill 9:30 that night so I wanna know could I already conceived between the 15th and 16th? Not to mention my chances of getting pregnant was medium one day and high the other day. Btw I didn’t realize I was in my fertility window until I checked the day after sex😩🤦🏽‍♀️