Pain in arm!!

Kaylene
Hey ladies 
I am having pain in my arm from my wrist to my elbow, when I put something cold on it , it burns . It also runs up the side of my wrist to part way up my pinky. Just wondering if anyone has experienced this?i thought maybe and allergic reaction but it's not red or blotchy. 
I am 26 weeks pregnant and am not sure if I can take anything or if I should try and get it checked out ! 
Thanks in advance !