Back pain ?!? Help please(NERVOUS)

Desire • Hello I’m a mom of a 9 year old, I’m 27 years old. I miscarried at 3 months in 12/2021. Currently pregnant,🧿 Due JANUARY 2022 🧿🙏🏽 GOD is good 💜

I’m 9DPO , positive pregnancy test.

I have cramps that come and go but I also have lower back pain and NERVOUS . Is this normal ?!!?