Who is "suppose" to start AF on Aug 28th??

Margo

I'm not too sure when the exact date that I ovulated? Two apps say 08/10/17 one says 08/14/17 and the other says 08/13/17.

I had EWCM 08/08/17-08/12/17

My cycles are 28-29 days. Help me out!!

Sex dates since off my period....

08/03/17

08/05/17

08/06/17

08/07/17

08/08/17

08/10/17

08/12/17

08/13/17

08/16/17

08/19/17

08/20/17

08/21/17

08/22/17

08/23/17