Ugh idk what to believe

Jessica • 32 yrs old with surprise baby number 6

So I have 2 different apps in my phone for conceiving one's telling me I should have started my period yesterday and ovulated the 7th and this one's telling me I should start my period the 27th and I ovulated the 13th lol well still no period and negative tests so I guess we'll keep waiting if I go by this app I'm only 8dpo so I still have time lol