Test or not to test.

I don't know if I should take a pregnancy test. I am only 7 days past ovulation and haven't missed a period I have a weird feeling I'm pregnant. I have 2 kids already I haven't been pregnant in 6 years but I feel pregnant my, tatas have the feeling of milk coming in, it almost feels like a blocked duct, I've had weird cramping in my low low abdomen, headaches I never had unless I was pregnant, I have no paitence (I usually have tons of it). Idk what to do. I am I just crazy?