i think it's quite late to answer or reply this case, but hoping will give a small explanation.
when we get our menstrual period, muscles in the womb will work to clean up and the result will bleeding for several days. whenever come to an end, it will be less bleeding. and with the sexual activity that includes vagina movements, it will give impact to the womb and send out all the blood which is remain inside your womb. and should be noted, your womb is in a very sensitive condition. a sex activity during post menstruation can create wound also.
another case, i found if my period's schedule already close [let say 2 - 3 days] and i do a sexual intercourse with my hubby, it makes come faster than usual. it's also caused the 'old womb skin' which is ready to fall, get additional movements. ↑ |