Chances of miscarriage?

I can’t explain it, I found out I was pregnant this morning and I just have a feeling I’m going to miscarry this one early on. I know it’s pretty common the first trimester anyway. I’ve had a hard time conceiving and I get these occasional weird cramps. Not like my usual menstrual cramps. They’re kind of sharp and in the uterus area. I’ve been getting them for the past 6 months for the few days before my period and I’m having them even now that I’m pregnant.

I would go to a doctor but we’re currently in the transition of moving so I don’t have one yet.

Should I be less worried? More optimistic? Whatever happens happens? Could use some advice.