TWW but unknown AF date

Amy • 32, Milo James 3/5/20 & Grayson Kade 1/22/19, Happily Married, Runner, Social Worker.

Hi ladies, I apologize, I’ve been posting quite a bit lately (helps me calm myself down).

I had a miscarriage on 2/12 and ovulated on 3/2. I’m currently 11dpo and got a BFN. I’m using three different apps and two have said I should’ve already had AF and then Glow says it would be on 3:16. Any advice?

Also, I stayed home from work today due to some major cramps and stomach aches, could this be implantation or more than likely AF?

Thank you!