3 month old at a wedding??

So obviously we got pregnant unexpectedly.. & I’m due 3 months before our wedding. Any tips for having our baby at the wedding? I’m thinking of just having someone carry our baby during the ceremony then handing our baby to my mother or my fiancées mom.

But when it comes to someone watching our baby during the reception i dont know what to do. I’ll have formula, and all of that but i always want to have some time with my hubby.

I also feel so guilt even thinking about a honeymoon and leaving my baby for a week. Any advice?