Is this normal ?

Hi all I had a miscarriage on the 15th November and on the 13th - 17th December I started bleeding (which my doctors say is normal for first period after loss ) I track using 3 different apps says ovulated between 25-30th December and says I’m 1-3 days late of my period still no sign of af showing up no normal symptoms is it normal for periods to be up and down like this after miscarriage?

Iv tested but they come back negative