I had a smear on Wed and had some minor spotting/ cramping. Late yesterday severe period type cramping and heavy bleeding. It is like a typical period for me ( heavy) not due on for another 10 days though. I'm wondering if smear could of kickstarted my period? It was a repeat smear due to insufficient cells so nurse was a bit firm.
You can sometimes have quite heavy bleeding after a smear. I remember I had it done once and I had soaked through my clothes by the time I got home. It was awful. It's just one of those weird things. The tissue on the cervix can be quite sensitive and it's not hard for a blood vessel to burst (happened to me when pregnant as well and bled a lot, midwives confirmed it came from the cervix, not my uterus). Hopefully it stops soon.