advice

My period last month lasted 3 weeks & 3 days very heavy bleeding , I contacted my doctor and their was no sign of it stopping any time soon, anyway cut a long story short they prescribed me with tranexamic acid tablets which stopped the bleeding, I then went for swabs & they discovered Cervical ectropion , I was advised this is nothing to worry about as it was so small and wouldn’t be causing any of my problems , I’m currently waiting for an appointment to have my tubes and ovaries checked too. However I’m now a full week late for my next period ? Do you think this is because of how long my last month lasted , I’ve done a test as I am sexuallyactive and bfn . Just wondering if anybody has been through the same and has any ideas as to what might be causing all the confusion. Sorry for the long rant 🙈