Achy cramps

Hey ladies. I'm currently 12 weeks pregnant with our rainbow baby. We lost our first at 13 weeks last year so any little thing this time around makes me nervous. I've been having some achiness and a few sharp pains in my uterus, nothing unbearable but definitely not comfortable. They are better now that I'm lying down and have gone away as long as I'm not up and moving. Anyone else going through this?