I'm sorry to hear that, it sounds like the doc thinks you've got (or are getting) preeclampsia. I had it with my last pregnancy, although it was very mild up until I went into labor (in fact they weren't even sure I had it until then). For whatever reason, labor sent me over the edge and my blood pressure through the roof. It took about a month after the birth for my pressure to return to normal. In the meantime, I was supposed to spend most of my time lying on my left side and not moving. Yes - with a newborn! I also had to take blood pressure medication. I ended up having to stay in the hospital for 5 nights after the birth (which was labor followed by an emergency c-section) due to my blood pressure being so high. In addition to that, my daughter was in the NICU for the first 3 days and therefore I didn't even get to see her for 3 whole days! For this one, I'm considering going straight for a c-section if there are any signs of preeclampsia at all during my pregnancy.
So tell your DH that he can either accept having the baby a little early, or he can have fun with you being in the hospital for an extended period and/or not being able to move (and therefore do) much during the postpartum period. That oughtta scare him. ;)