If you're able to do it then take advantage! Because as soon as baby is here, it'll be a distant memory
which won.t be too much longer for you!
Do try and take a little walk / stroll or something at some stage during the day though, you'll feel better for it, and doing a little bit of regular exercise will really stand to you in labour - otherwise it's like running a marathon with no training
I'm a bit behind you, but we're dairy farmers, so I'm up around 5/5.30 every morning to milk 500 cows with hubby for approx 21/2 or 3 hours and then same again at 2.30. In between, I have a nearly 3 year old to run around after, 100 calves to feed and rear, a house to clean, laundry to do, meals to cook and I've been diagnosed with gestational diabetes so have lots of consultants / midwives / hospital appointments to fit around my day too. I see myself doing at least another 4-6 weeks on the farm before I start winding down - all things going well.
To be honest, sometimes the less you do, the less you are inclined to do. Everyone is different, and some people have other factors which have a bearing on what they can/ can't do while pregnant. At the end of the day, pregnancy isn't an illness and we shouldn't treat it as one. Enjoy having some time on your hands while you can, they'll be full soon enough!!