PLEASE READ

Last night during my sleep I woke up from severe pain only on the right side of my back that I can't explain .. I sat there crying for about 20 minutes switching from side to side stretching trying to think what I could do to take the pain away . I ended up taking a hot bath which kinda worked .. The pain was ONLY on the right side of my back and felt like it shot over to my hip . I can't explain it which makes it that much more overwhelming :( I really would like to hear what you all might think this is . I'm 17 weeks .