Should i wait?

Amanda
So in may my af started on the 20th in june on the 18th and in july on the 9th. My question is should i wait another 2 weeks to see if it comes to go to the dr or go next week. According to glow af should have came around the 3rd but its a no show and ive taken 3 test all bfn. I would like to see a bfp. My daughter wants a little sister.