Help I’m confused?

I’m gonna sound crazy but I’ve got no where to go if this isn’t allowed please delete but I had intercorse two days before my fertile window he finished inside me and I just had an instant bad feelings I didn’t know I was that close to my week I’m usually very in tune with my body it’s been on track around cd 14 or so I thought however this week was my technical ovulation week based off my calander but I’ve not gotten any CM indicating such I think I may have ovulated early there were other signs that I’m not feelings this week too that I did around the time of intercorse and now I’m just worried I have a 4 year old son and I’m definitely not ready for a second as I just turned 22 has anyone else ovulated early and gotten pregnant? Am I just paranoid? I just knew something was off the minute he pulled out. Should I test if so when? I’m so confused and frustrated with myself. 😮‍💨 any advice welcomed.