Baby won't take a bottle?

Caitlyn
My LO is 3 weeks old and is EBF. Per my pediatrician's recommendation we didn't introduce any soothers or bottles until today because my husband needs to be able to feed the baby when I go back to work. We've tried the medela  bottle that fits with my pump and a few other brands. Each time he lets it sit in his mouth but won't suck to eat. We put some breast milk on the nipple and tried and still nothing. I've tried doing it myself and completely leaving the house and we've waited for him to be hungry. Luckily I don't go back to work for another couple of months but do you ladies have any tips to get him to take a bottle?