Hi Chantelle
Did you have unders? I takes a while for you to adjust to the extra weight. I was hunched for around 2 weeks. I find the cold is not helpful as the body goes into protection mode around the new additions.
I think the sleeping position is what makes you stiff. It kinda feels unnatural and because you can’t roll about as normal, you get locked up and it takes the normal movements of the day to loosen up. It will get better, how quickly I don’t know as we’re all different.
L x