Shot reaction or baby acne?

Brittney • 28. Married💍. Christian🙏🏻. Mommy to Adelina (3 yrs) 👧🏻 Nikolás (4 mo)👶🏻💞🥰

My son just got his 4 month shots on Tuesday and around Thursday he developed these little dots around his legs and then as well a bit on his belly and arm. I’m not sure if it’s a mild reaction or just baby acne flaring up?