ETA - Feeb, if you can't donate blood but your iron levels are high, you can have a procedure in hossy which removes some blood. Just like giving blood actually but the blood isn't reused.
I did see a physician at st V's and he did tell me to get blood taken off but i have BAD veins and first try the nurse got 30 mls and 2nd time i went they got a professor to take blood and she got it but from veins on upper arm and OUCHY and bruised so badly, they never ever made me more appts, or returened calls when i rang.

When i was preg OB was not concerned and just took some extra bloods to moniter, all was ok