Everytime i come to my boyfriends house i get sick

I am 32 weeks pregnant and dealing with hot flashes and feeling hot all the time,, sweaty and shit.. well his parents dont put up the ac on that much. Its usually at 76 for some reason. And my house is at 72 degrees . Everytime i come here i wanna throw up because im hot and im not comfortable at all here. Even tho he has 2 fans on in his room and HE does PAY the AC FOR THEM so he turns it on 72 too but still sometimes he doesnt want to put it on cuz his parents get cold and also sometimes the parents put it back to 76 degrees. 🤦🏻‍♀️its just not a good time here at my boyfriends house in the summer