Cervical position

I was fertile from 24th to 30th I got postitve opk on 29th I also had near positive from 27 to 28th which I could say was positive until 29th was really dark.... Anyway we bd on 29th and I can remember it feeling like his bits lol was coming out my mouth literally like my cervix was low... But reading low cervix is after ovulation so can anyone update me on this? Got negative opk on 31st