One week prior to monthly during sexual contact there was a pain in vaginas...

[Tanja]

One week prior to monthly during sexual contact there was a colpodynia and bloody allocation. In some hours bloody allocation have amplified, sometimes an acute pain in the field of kidneys and in the bottom of a stomach or belly, but on monthly it is not similar. Thanks.

[Pasenjuk A.M.]

Probably some or a little bit variants: an apoplexy of an ovary, break of a wall of a vagina. In any case you need to pass or take place survey at the gynecologist and probably US.