Baking with alcohol

Caroline
I need to make st Patrick's day cupcakes and a lot of recipes have Guinness in them. One recipe I've made before has only a half cup of beer in the cupcakes and 4 teaspoons of Baileys in the frosting. it makes 12 cupcakes. I'm 12 weeks.. Is that ok to eat? Its such a tiny amt between 12 cupcakes..