bottle feeding help!!!

My LO is EBF right now. Pretty soon I have to go back to work...so lately I've been leaving my LO with my husband or Mom for a few hours so they can get used to being with him and bottle feeding....BUT.... my little guy won't take the bottle. He just gags and screams and cries until I get home. And advice on getting him to take a bottle?? Is there a certain bottle out there that's good for breastfed babies? Is it the temp of the milk? Is he just being stubborn wanting the boob lol??? I don't know but I need help. I cant go back to work for 12-13 hour shifts if he won't take a bottle! 😩😩😩