upt negative

try checking with a different brand of upt. i knew i was pregnant when i got terrible headache just after 2 or 3 days of my ovulation. when i check on 10 dpo i still got negative then i try using a different brand. i was able to see a faint line with the other one. the line gets darker at 12 dpo. you can try it or you may wait another week to check.