Need help

S • ttc baby #1
I was suppose to start my period 3 days along according to glow I still have not start I had light spot a week ago for 1 or 2 days but nothing to serous my cm is very water getting on my patties what can this mean I'm scary to test cause I feel like it can be to soon cause I'm not feeling sick the only thing is that my chest and boobs been hurting with sharp pain... my last period was 12/1/15 to 12/4/15