5w old coughing

Rosa

My son will be 5 weeks old tomorrow and today starting about 12 hours ago I noticed some coughing. Nothing consistent, no coughing fits. Just one cough every couple of hours. But I’ve never heard him do that before so I’m a little worried.

No fever, no runny nose, no other symptoms.

He’s had a bit of an upset stomach recently. Only pooping once a day and it’s a little more watery than usual, but considering he’s feeding almost constantly right now, I figured that was related to a growth spurt. But now I’m not sure if they could be related?

His pediatrician won’t be open again until Wednesday, so just wondering if anyone has dealt with a small cough as well. Thank you in advance