lurking, but just an idea. What if it does work and you go into labor. Then your husband is going to be sick and probably exhausted throughout your whole labor. And if it's something serious then it could be given to your baby. Obviously those are extreme circumstances lol, but just throwing it out there. It would suck if your support person during labor wasn't able to give you the support you need/deserve.
ETA: and before anyone says anything, I know you won't go into labor if your body isn't ready. I just don't know if I'd risk it.