hey ladies I'm going to attach a couple pictures.

So this is my current situation. i have irregular periods. but as you can see i have never been pass 39 days. i am currently 11 days late. i took a test on the 16th,17th, and 18th. all negatives. with my cycle being irregular could that mean i tested to soon? i really am scared to take another test i really want a positive i am on vacay right now so i havent even thought about it in a couple days. any advise? anyonje have something similar and ended up pregnant?