So, I am due for my period (today actually) and I've been having a lot of cramping, so I didn't expect anything other then a normal period. But however, today Nothing came while I was at home. I wear light pants to work so I put a pad on just in case. But still nothing, except for a light pink, almost a stain on the pad, where it is lighter in the center and as it goes out deepens a bit. When I wipe there is that same pinkish stain.

I have no clue what is going on. My fiancee and I always use a condom, and I am on birth control. We haven't had a condom tear or rip on us, and we haven't had un-protected sex, so I highly doubt pregnancy. However I have been under a high amount of stress the last two weeks leading up to my period. Is it just that my period is being weird due to the stress, or something else?