Yes, it is safe to take but you should always check with your doctor before taking any type of supplementation when you are pregnant before you decide to move forward. That being said, non-pregnant women should look to about 18 mg of iron while a pregnant woman should be taking 27 mg of iron daily.
Iron is an essential part of your body’s ability to produce hemoglobin which transports oxygen throughout your body to your cells. When you are pregnant the extra iron is needed for that growing little baby and the placenta and is specifically important in the second trimester and third trimester.