My blood test results for HB at 10 weeks was 12.9 g/dL and then it dropped to 11.6 at 24 weeks. I have not had a ferritin blood test but my GP has prescribed me 210mg Ferrous Fumarate to take 3 times a day. Is this too much? I did have mild anaemia in my first pregnancy at 28 weeks so i don't know if maybe its a preventative this time but is the dose too high?