PMS or pregnancy!?! Google is NOT helping! Lol

Okay! So I have had some odd symptoms lately that is really starting to make me wonder. My fiancé and I have been trying to have a baby for almost a year now with no luck. I track my ovulation and all that good stuff it just hasn't happened yet.

SO my period isn't due for over another 2 weeks, today I started cramping with some really light pink discharge, my breasts have been so sore for over a week and I just feel super crappy overall. I try to look up my symptoms to try and make sense of it and it's either pms ooooor.... I'm pregnant? Maybe!? I just don't know why I would have these symptoms mid cycle. Seems to early to be PMS... and ideas!?! I need insight. TIA!