premature lab
"I was told that many women have taken this and it works. It was my first trying it at 18 weeks. My ob told me it helps to make you stay pregnant longer. I took it Monday. The following Monday came, I ended up in the hospital with a rupture membrane. I lost my baby Tuesday.  There really isn't any data backing it up, but please make sure you check your cervix before taking the shot. It sad to say but it was my only one shot. I regret it."