13w 3D tightness,pulling and pain?

Zoe • Pregnant with second baby! Momma if one baby boy! 💙💙💙💙💙💙💙💙💙💙💙💙💙💙💙💙

So I’m 13w an 3 days and I have this very tight feeling between my hipbones on my lower stomach, and it’s even hard to the touch like I’m flexing my muscles and hurts a bit to touch. Also having light cramping and the feeling of pulling in my lower stomach as well. If I stretch my body out and stretch my arms above my head it causes a pulling pain there as well. Is this all normal?