OPK Help

I got my period earlier than expected which sucked as Glow moved estimated fertile time when I was on a girls trip. I just got back yesterday at which time we BD anyways.

So on a whim I took a opk test this evening

and it came back pretty dark. Do you think I may have ovulated yesterday (and Glow may have been wrong) or perhaps could I still be in the game?

I should note this is our first month TTC since having a miscarriage in May so I haven't used opk in a while.

Thanks!