(((AbandonmentIssues)))
I am truly sorry. I didn't mean to come across as harsh and hurtful. Thankfully, I've never been in the situation that you find yourself in ~ and I can only imagine your level of pain and confusion. I hadn't considered other possible reasons of your husband's behavior, like those that Open Eyes pointed out.
I wish that I had the magic answer that would make you feel safe, loved, and comfortable. You're just a few weeks from being a mommy. Take advantage of getting sleep now, while you still can.

I recall that when I was at this point in both of my pregnancies, I'd get up 2-3 times per night due to pressure on my bladder.

You're so close to the end of pregnancy and the beginning of mommyhood.
While being the primary caregiver to you baby is demanding, it's also very special. I wouldn't change a thing about those years myself (which is a HUGE positive statement for me to make, as I have a major tendency to dwell on the negatives). Those times were wonderful in many ways. I want you to be able to enjoy these special times.
Once I discovered Moms Club, I was thrilled! A worldwide group devoted to stay at home moms and their children. The groups are divided into various ages, and have play dates set. It really was a terrific thing for my girls and I. Check this link to see if there are any in your area.
http://www.momsclub.org
Big hugs and gentle belly rubs to you. You're in my thoughts....