I am 43, I’m very regular, but currently 6 days late. I tested Saturday (negative). Sunday I had some lower back pain and a crazy headache. Monday, the back pain continued and I had just the smallest amounts of bubble gum pink when I wiped. Last night I also threw up four times before bed. Today, other than being a little tired I feel great. Took another test today (negative). What is going on with my body!!! Grrrrr!