my girlfriend has been on the depro. shot for about a year and a half now, about 2 or 3 months ago i have noticed that there is a thick, off white discharge when i insert my fingers inside her, also the taste and smell are both varry strong and somewhat unpleasent. its all the time so i dont see how it can be from the menstral cycle. also just about evey time i finger her than we have sex i see a little bit of blood on my fingers and the condom. she says she is on her period but iv noticed its just about evey time, just slight spoting and it only lasts for about 2 days. she is going to the gyn in a few weeks and she is going to ask what it is but im kinda curious myself. does this sound like anything serous off the top of your head, any help is appreciated.

thanks,
ShadowMan