Take the Stairs
You can literally exercise anywhere at anytime and you don't need to make it complicated at all. I did prenatal yoga in my living room on a towel from a youtube video. Being physically active doesn't mean you need to get an expensive gym membership, you just need to move your bod. Park further from the entrance, skip the elevator, or do a few squats while babywearing. Exercise doesn't just help your heart health, it increases our energy and mood while squashing stress.