I understand how every little physical change can make you feel uneasy. A cold belly is just your body adjusting to the beautiful life growing inside. You are doing great, just keep yourself cozy.
Hey, don't stress too much about this cold belly thing! It's super common because your blood is busy rushing to your baby inside, leaving the outer skin a bit cool. Just rub a nice cocoa butter and relax.
I felt the exact same thing during my pregnancy and would constantly touch my tummy to check. I felt so relieved when I learned it's just because the blood goes deeper to nurture the uterus. It's a beautiful sign of your body working hard.
A cold belly is very normal as the skin stretches and blood flow is redirected to support the baby inside. Just keep your belly covered and warm, there is nothing to worry about.
It's just physics, your skin is stretching thin and the fat layer moves, making the surface feel cold. Wear comfortable cotton clothes and apply a nice warm moisturizer. It's completely harmless.
Oh my god, I panicked so much when my belly felt cold, thinking the baby was freezing in there! But my gynac laughed and said it's just because of blood circulation changes. You are totally fine, don't worry like I did!