Projectile vomit

Hey gals. My son is ebf for almost 6 months. My goal was to stop around 6 months so i have started to introduce formula. With 3 different kinds he has projectile vomited. Since the 2nd time he refuses the bottle. We tried a 3rd kind today and he didn’t even take the bottle, my husband just tried to squirt some formula in his mouth to get him to taste it in an attempt to get him to take the bottle and he threw up 3 times from barely any intake. Anyone else have these issues?