I get "how are you going to cope" aswell. Although i just say... Well there is always shopping to do!! Think of the aircon.
But, my house is pretty cool during the heat of the day, as i live in a townhouse. There are fans, water, there is a beach up the road, and you know what like a few of you guys said, it will be alot easier coping with being preg than having a newborn screaming of uncomfort! Atleast we can have cold showers etc!