The last 3 times iv had sex with my partner I have started bleeding the next day, starts with spotting with little clots and strings of dark blood for a couple of days then moderate bleeding like a normal period for a couple of days but also with clots.
The first 2 times it happened I thought it was just a coincidence but now it's happened 3 times I know it can't be as iv now had 3 periods in less than 3 months when usually my cycles are around 38 days.
Does anyone know why this could be?