Hi lemon, anticardiolipin antibodies basically mean your blood clots very easily, it's normally associated with lupus anticoagulant. It's treated using anti clotting drugs such as warfarin. They'll put you on these asap before you conceive and up the dose during pregnancy. It's pretty simple to treat effectively. During pregnancy you'll have a lot more monitoring and blood tests often to make sure your bloods are at the right level. Sorry for your losses it's really hard but at least the blood markers point out something that is quite easy to treat.
Suggest professor lesley regan's (St Mary's miscarriage clinic in London) book on miscarriage, which has lots of information on this, including treatment options. She emphasises the importance of doing testing very well because there can be false negatives if not done within a certain time, in the right way etc.