Women younger than 20 and older than 35 are both vulnerable to during pregnancy. women younger than 20 and older than 35 are both vulnerable to during pregnancy. hypertension gestational diabetes having a baby with down syndrome iron deficiency anemia

hypertension 

Most of the complication of pregnancy will be increased in older age, but not in a mother that <20 years old. Woman aged 35 above will have a higher risk of having chromosome abnormality like down syndrome. Diabetes also found higher in older mother.
Hypertension is the only one that increases in <20 years old mother and >35 years old.

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