2 points!! ding ding ding ding...you guessed it!!
DIGDUG...I would offer to take her to the doctor while he was at work (or while he was sleeping) but that is the most you can do. Having lost children by miscarriage and still birth I would NEVER EVER take that chance...then again...I am not them...and neither are you. You are so right to be worried. However, in this case...there is nothing you can do.
You can keep talking to him about it...but it may or may not do any good. I am sorry you have to watch him self destructing with a baby in his path (and hers).
Poor little baby!