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High-risk pregnancy: Know what to expect

Pregnancy with multiples

Risks to both a pregnant person and the fetuses are higher when a pregnancy includes more than one fetus.

The likelihood of having more than one fetus is higher in people who have gone through infertility treatments to get pregnant. Those treatments also are called assisted reproductive technologies (ART). One common type of ART is in vitro fertilization. The use of ART may raise the risk of some medical concerns during pregnancy, such as diabetes or high blood pressure.