Cramps??!!!

Farah
This is my third month ttc. 
It's now 7dpo and I'm feeling tingly cramps in my uterus both on the left and right side and lower back pains. Also I'm really tired. I have a really thick white dc that's lotion like. Any ideas of what this could be?  (Also around day 2po I had very light pink spotting just one time) Not sure what that was about?
Af is set to come around the 14-17. (Hoping she doesn't)! Anyone else felt the same symptoms and tested positive/negative ?! LET ME KNOW!!