I'm so sorry to hear about your miscarriage.
I got pregnant for the first time when I was 36, and my son was born after my birthday when I turned 37.
I am not a small girl (by doctors I'm considered obese) but I had an amazingly easy pregnancy - not even any morning sickness - no high blood pressure, no gestational diabetes, nothing until my 37th week. My fluid level dropped then and I needed to be induced. But, luckily, do to the "advanced maternal age" thing, I was being monitored twice a week for just this problem. So, everything worked out.
I will have to say that my delivery made up for my pregnancy - it was very difficult. Part of that was due to the Pitocin, and part of it was due to the fact that apparently the only part of me that is not plus-sized is my birth canal - my DS literally got stuck and needed to be assisted out with the vacuum. But he's fine, and I'm fine, and especially with the special monitoring they do to anyone over 35 who is pregnant I wouldn't hesitate to get pregnant again if that's what you want to do.
Good luck with your decision and I wish you a healthy pregnancy if you decide to do it.