Having a hard time

I have been trying with my s/o for months, we have had a miscarriage back in Dec, which was hard for both of us.

Unfortunately, he works away in a totally different state right now, so we try when we see each other.

I ovulated right around when I saw him last, but I got my regular period a couple weeks later, yet I feel odd, always tired, extra hungry mainly around meal time but always wanting a snack, and more frequent need to go to the bathroom...

Could I be pregnant?

I have spent so much money on tests the past few months, in hopes but they have all been neg. So i figured i would start here.

TIA