Help I’m so distraught I can’t forgive myself

Please tell me I’m worrying too much 😞 I am

So nauseas and feel like such a horrible mom.

My son is three weeks old and briefly met a few of my moms friends (two held him for 2-3 minutes) and they wore a mask for the most part but there were times they pulled it down. They are both Covid vaccinated but now I looked online and saw pertussis is deadly and I can’t stop being nervous that I put him at risk.

They both had no symptoms and are over 40- but I am sick to my stomach. What do I do now?