Two days late wet clear CM on and off

I will be two days  late tomorrow and I usually am never late. My breasts hurt..they were really swollen a few days ago but now just painful when touch. My husband said my nipples look a little bigger than usual. 
​I tested  this morning and it was negative. I only feel wet as if something is leaking but nothing! I have a panty liner on and I can see very light yellow. 
​Could this be pregnancy? Should I wait a few days and test again? 
​My cycle is 25/26 days and I think I ovulate 17th day