I think that this is pretty rare. But I have it. My blood type is a negative so in my first two pregnancies I got this shot at 28 weeks and then after labor. Well with this pregnancy I started spotting at 6 weeks and spotted for over a month along with cramping, so then when they found out my blood status they gave me that shot and I havent spotted since or had cramping. You can go here for a good article
Baby center then do a search for rh status.
Last edited by btrflydrm63 on December 17th, 2004 06:59 PM; edited 1 time in total