confused

hello queens I need y'all help. my period is well was due on the 19th. no period. my story I had sex this month in my fertile window on the 2nd and 4th the 5the was my ovulation day. on the 5th I started bleeding so I did not have sex. on the 6th and 12th I been to the doctors.. no std no infections negative testing for 🤰... my period supposed to start on the 19th. I still have no period just spotting I'm not sure wtf is going on tomorrow I go back to 🏥 after work hope 🙏 all is fine with me.