Keeping open communication with your loved one will always relieve the tension in the air. Like when you see him do the eye roll thing

and he's saying "whatever dear!!" It's absolutely normal to lose your patience with your enlarged belly, your sore legs, your cramps and pressure down below, and your overall feeling of puffiness,
But, you have to let him know that your sorry for your lack of grace and feminity, but that you just want him to continue to support you because that's what has helped you get through your pregnancy so far.....
" Sweetheart, I love you and I'm sorry I've been a miserable wretch, but please just ignore my behavior and know that you've been wonderful, and supportive and I'll try not to take it out on you."
Maybe not in those exact words, but I have had breakdowns on my husband where he's had to just leave me sitting there crying with my hugeness for awhile, so that he could regain his gentle, loving nature that I sucked out of him. I couldn't blame him.
Yes, they need to understand our physical symptoms related to pregancy, but we need to also respect their emotions as well. It's a fair trade.
Physically, your body's need a release of the hormone build up. Brisk walking everyday x 2, will get your circulation going and pumps oxygen to your brain and to that beautiful baby. It also helps flush out all the bad air and recycles fresh air to your lungs and into your blood. You will see a difference in your mood, your overall attitude especially late in your last trimester, and you will feel healthier overall. It always worked for me. I even felt prettier with a little tan from all the walking.
Good luck with all of your pregnancies!!
myangelsinheaven