Pregnant, anaemic and cant take iron tablets. any suggestions ?

I am very sensitive to iron in pill form. With my last pregnancy I took the duet DHA by stuart natal prenatal vitamins. It has some type of "iron ease" in it so it's easier to digest. Also try green leafy veggies like spinach, asparagus, iron fortified cereals.... To prevent the constipation make sure you drink plenty of water and eat fiber rich foods as well.