Back aches normal? 4wks pregnant

Yesterday I got a faint line on an hcg test, and today as well, yesterday my breasts began to get more sore then they already were (thought it was pms symptom) and by last night they were reallllly sore following into today.

I’m estimated to be 4weeks to 4 weeks and 3 days (my cycle is always off a couple days)

Today I’m experiencing aches on my back almost like Iv been hunched over for to long and when my husband rubs my back it feels sensitive almost like he’s rubbing a sun burn.

This is my first pregnancy so I don’t know what is typically normal or not and I say typically because I understand everyone is different and every pregnancy is different

Has anyone else experienced this in early pregnancy 4 weeks to be exact?