Just wondering if anyone else out there has had this and what the poss cause could be- maybe a posterior baby, things starting to happen??? I'm heading out for acupuncture today because I can hardly walk.

It's like a stabbing, twinge in my left lower back and has been coming and going over the last week or so but seems to have set in since last night. I did the warm bath and then heat pack thing last night. I've also been having period- like cramping coming and going over the last few days. I'm not worried (should I be???), just interested. Bubs has been head down for the last 6 weeks or so.

Any advice would be great as my next OB appt isn't until next week...