Brown patches on my skin

I Am currently 21+3 and found these dark patches on my arms and back of my neck. They have only come since been pregnant and in the past couple of weeks. Has any body else had anything similar if so what has it bin?
Add Comment
Let’s Glow
Glow is here for you on your path to pregnancy
Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.
25+ million
Users
4.8 stars
200k+ app ratings
20+
Medical advisors