Back pain 5w3d pregnant

I had a miscarriage last month and I’m now pregnant again. My beta hcg test showed it’s doubling and I had an early scan and it showed a gestational sac & yolk sac. I’m worried I’m gonna miscarry again because my body just feels off like I have aches and pains everywhere. My lower back is achy and I get some twinges in my uterus/pelvic area. Someone please tell me they experienced the same and had their baby 😩🤞🏻