A little bit of advice!

I'm 38 weeks and 6 days and for about a day or so I've been getting really bad Braxton hicks, I have been getting Braxton hicks for a few weeks now but these one were very uncomfortable for a good few hours, so I got in to bed and went to sleep for a few hours, woke up and they have stopped but I now have this stitch like pain on my left side! It started off in my back then moved to the front and now it's in both places.. Does anyone know what this is?