Hi! I’ve been testing to see if I’m pregnant, it’s been nine days since my estimated period start date and not even a drop of blood. I tested the third day after my estimated first day and got not pregnant. Considering I had sex recently in comparison to my test (within 20 days) I figured testing to be sure was the best bet however I’ve gotten invalid on my tests four times in a row since then, so five tests total. Should I be worried? I’m following all the instructions exactly as they say!

EDIT: I have had a uti and yeast infection recently!