Glow says AF should start in 10 days, last month AF was weird. The first day was spotting then it was light for 2 days the other 2 days were also spotting. I took a pregnancy test they all came back negative. Now I feel blotted so if I wear a tight shirt I look pregnant. I have sore boobs and I have been extra gassy and urinating a lot more than normal. Should I wait to see if AF comes or go get a blood test done to see if I am pregnant or not?