Hi Jennifer I haven't had a period since last August, so thinking this is the end now, I have been using estriole cream for about two months now, it has really helped with my urge/frequency bladder issue and soreness. I have had no bleeding or issues, I would imagine your bleeding is more likely to be related to your hormones settling down from stopping hrt etc, I've known if friends who have thought they were period free, almost getting to the 12 month milestone, only to bleed again around the 9/10 months.
Hopefully it will just settle down, but you are doing right by getting it checked x