"I am loving keeping fit whilst I'm pregnant," the 30-year-old mom-to-be wrote, sporting black yoga pants and a black and white crop top. "I'm 20 weeks and although I could sit on the couch watching TV all day, I have to get up and keep moving! To me it's imperative for women to have an active pregnancy. It's better for your well being and it's great for your baby (within the limits your doctor has given you of course) Everyone will have an opinion about this, and that's ok, but until I'm too big that I can't move, I will be doing some sort of exercise each day. Believe me, it's not easy, I'm not used to this body I have at the moment, and I'm heavier than I have ever been."
"The parts @maksimc and I laugh about the most, are the fact that I have to roll out of bed (I don't want to squish the baby)," she continued. "I use my hands to push myself off the couch and he has to boost my butt out of his low car Ladies, your health is everything and we have to laugh."
Peta is expecting her first child with DWTS co-star Maksim Chmerkovskiy, 36. The pair have been engaged since last December and are rumored to be planning a July 2017 wedding.
Last week, the New Zealand-born dancer shared one of the blessings, and at times struggles, of pregnancy -- her growing boobs!
"Hi boobs," she joked on Instagram. "My lawd this milk thing is no joke #DoubleDs."