Did I just sleep wrong????

Mikayla • I'm 23, married for 4 years, we have a beautiful 2year old little girl! she is our universe!!!! I'm a cancer in a home with two Capricorns!!!! Baby #2 due may 2019!
I'm having pain in my left shoulder i noticed it when I got up to use the bathroom last night. It feels like my shoulder either needs to pop or I slept on it wrong or too long. The muscles feel pulled or strained around my collar bone area of my chest. What could it be or what helps???? Ftm and I'm 22 wks