Confused. Help!!

So I use 2 apps to track my period and stuff.

I use Ovia and Glow. Well of course they both say I ovulated on different weeks.

Ovia said I ovulated the August 27th-1st of September. But Glow says September 5th-11th. My period was August 16th-22nd.

What do you guys recommend I go off? I had sec during both times just in case. I don’t really feel pregnant yet so I just don’t know.🤦🏼‍♀️