There's been quite a bit of good advice given here on your situation. A couple of things that bear repeating: You are not obligated to meet with the elders. They would be out of line and going ahead of the Christian arrangement. Your husband is your spiritual head, not them. If he can't handle it as a loving husband and shepherd, he shouldn't be serving. Unless you're making waves in the congregation by spouting off your doubts and trying to influence others, it's his responsibility. All the elders need to know is that he's working patiently with your problem. He can honestly say that. He can tell them that it's brought you to some sort of depression and that its quite awkward for you to be at meetings and to go in field service for the time being. He can honestly tell them that meeting with a couple of elders will only make the matter worse for now. Which brings up the issue of whether he really wants to help or if he's more concerned about his position or how it looks to others. So in your private conversations, calmly plead that you have a conscience, and right now it's conflicted. Don't put him on the defensive or show anger. Don't rant negatively about the Org. The blood issue is an easy target, but not to an indoctrinated JW. Common sense isn't part of the equasion so don't rely on it.
Continue to be a good wife and mother. Go out your way (but not too obvious) he might just respond well.
This may work for a while, but be aware that the next time the CO comes around, he's going to want an update. The Branch is getting more and more concerned about doubters, so they may step around the headship thing. So work on the husband and wife relationship in a positive way. He needs to understand that it's your conscience not a community one. Because Jehovah and Jesus can only be served by a sincere heart..which wouldn't be the result of a conflicted conscience. John 4 is useful. The father must be worshipped with spirit and truth. No half hearted compromise will do. Your husband should agree with that. One would hope anyway. The best to you.