Lower back pain 13 weeks

[KTAX]

Hi all,

im 13 weeks pregnant today.
over the course of this afternoon ive started to feel some quite severe lower back / coccyx pain. It feels like period pain and the intensity is making me feel sick. I’m worried that something is wrong.

Is this common at this gestation? I’ve had 2 babies before but I’m so rubbish at remembering if I felt this way before.

TIA

I slipped a disc during pregnancy but I think the most common reason is PGP. Pelvic girdle pain.
i hope it’s neither of those and it goes away xxx