not a birth professional, but a momma who gets this often, and way more often when I carried my breech. I always thought it was a kick to the cervix. I get it seldom with this pregnancy, and not as sharp as with the breech, but a little hip wiggling seems to resolve it, guess thats why I always thought that it was the babe kicking/punching the cervix since a few pelvic rocks/hip wiggles seem to stop the sharp sensations as if i was moving baby away from the area. These sensations happen as early as 25 weeks.
Married the love of my life : on 3/18/06, SAHM to Livi 3/11/07 : and Eva 10/10/09 :