Moving towards thoughts of positive

I’ve had several symptoms today. Some are hard to distinguish from the allergies, which have become suddenly horrible in the past two days. But the main symptoms are fatigue (I took a two hour nap and spent the rest of the late afternoon/evening in a daze) and sciatica in my legs, which I haven’t had since third trimester with River. I’m also having some cramping, which makes me thinks my period is coming, but some googling says it can be the uterus preparing space for a baby. So no clear answers yet, but I’m moving back towards thinking a positive is possible.