It could be round ligament pain. It can come in bouts and it can take your breath away. Speaking from experience, I'm currently 9 weeks with my 3rd pregnancy, but this will be only our second baby. I miscarried in April. I just 5 minutes ago had the sharp stabbing ligament pain. Unfortunately it is here to stay. The whole pregnancy. It does become a bit less sharp and alot more of a tight stretching pain. Heat helps some, try a warm bath. Epsom salts are safe to use while pregnant. I like the lavender scented salts. It's more relaxing for me personally.