Try massaging his legs. Pressing them up and against his stomach and bringing them back down. It helped with my little one

Make sure you're burping really good! That's probably your problem. After 3-5 minutes if you haven't gotten Amy burps then switch positions. My son was 4 days old and would fall asleep for 15 minutes then wake back up. We did it for hours and it was gas because I wasn't burping him right... I felt so bad. Called my mom at 3 am not knowing what was wrong with him.

plus I'm strictly breastfeeding @norcalmomma

I don't want to give him much bc he's early and only 3 days old. Getting gripe water tomorrow

Poor guy! Have you tried peppermint dissolved in warm water in a bottle. It helps a ton!!!