Have any other post menopausal women had any inter uterine bleeding after the vaccine? I am 69 years old, 18 years since last period. I have been on hrt all this time, with no problems whatsoever. I had the first vaccine and 8 weeks later, had a 6 day bleed, which was exactly like a period, (bought it all back!). Three months later, I had the 2nd vaccine and 2 weeks after, had another 3 day bleed. I saw my doctor after the first episode and have various tests...pelvic ultrasound, smear test, blood test...all normal, no reason found. I see postmenopausal bleeding is not mentioned in side effects, though I have read of heavier/messed up periods linked to it in around 6,000 women. Would be really interested to hear back if this has happened to others.