Hi there.

I'm so sorry to hear of your losses, both of you, and that you have this dreadful disease. I have a medical background and am being investigated for this, so I hope you don't mind me sharing what I have learnt about it so far, which may well be old hat to you but I hope it's helpful.

In short, the illness makes your blood a bit thicker than normal; it's more "sticky" and "gloopy" - this means that the products in the blood can't get to the placenta as easily as they can in a "normal" person. Heparin, Warfarin and Aspirin are all blood-thinning drugs (I think Aspirin can cross the placenta though, which is why pregnant women shouldn't take it) so your blood is less sticky and the blood products can pass through the placenta to your baby, meaning you'll have a happy healthy baby at the end.

That's the theory behind it, at any rate.

Side-effects - the problem with this is that most side-effects refer to people who have normal blood, not sticky blood. Lightheadedness, for example, is caused by the blood being thinned so there's less oxygen going around. For you girls, it means fewer episodes of light-headedness; the sticky blood was making you lightheaded, now it's "normal" consistency you'll feel better. I've not heard of any really dreadful side-effects, save for some bruising if you have a bad injection.

Best of luck to the both of you.