Vaccine Reaction normal?

Stephanie • Mommy to an angel baby, Addison Grace. 💕👼🏻 Mommy to our rainbow baby, Gage Wayne. 👶🏻💙

My son got his 12 month shots 8 days ago and this big red welp where he got the injections just showed up this morning. It feels kinda hard. He’s been more clingy since his shots, but otherwise normal. Not sure if I should call his ped about it or just keep an eye on it. He’s never had this happen before.