My Rainbow Baby

Shikeira

I miscarried Feb of last year, according to this app AF was suppose to show 8/23 a little pinkish on tissue day 2 and 3 but no sign of her and still cycle day 7 she still havent showed a sign... My birthday is 9/2 when should or could I test also my baby would've been turning 1 on 9/12 next AF is scheduled to come 9/21... Can somebody anybody please help!!!