Sore all over!

Is anyone else sore? I’m about 5 weeks I think, I’m not exactly sure because my periods have always been irregular and I never really tracked them because of that. I’ve been fine up until today. Now my hips and lower back are so sore everything else is just like a dull ache. Is that normal? With my son I experienced nausea soooo bad during my first trimester but I haven’t really had any symptoms with this baby besides feeling exhausted and slight cramping. I’m so worried I’m going to miscarriage.