Twin Pregnancy Twin Pregnancy Pregnancy Resources The American College of Obstetricians and Gynecologists You might also be interested in Complications in Pregnancy Complications in Pregnancy Countries Currently Affected by Zika Virus Countries Currently Affected by Zika Virus Lightening or “Dropping” Lightening or “Dropping” Previous252627Next valleywomenshealth22021-02-24T22:22:49+00:00