Any other crossfitters?

I have been on tirz for 9weeks or so. I do CrossFit 5 days a week and I feel like my scale at home is not moving. My muscles are sore so maybe it’s that. I’m on 4mg or ml (be nice to me🫣) whatever I bring it up to the 40 on the syringe. I am trying to chose high protein options. I feel like when I started doing tirz I was purposeful about eating protein but now I have been a bit lazy about that. Not that I am all silly nilly about eating but protien isn’t the main goal. Do you think this is why there is a stall. Long story short the scale hasn’t budged in a couple of weeks. I did have my period one week but it hasn’t moved since. Is it the high intense weight training or lack of protein.

This might be a dumb question and maybe I’m dumb so please nice answers 🥹