Anxious to travel (long)

My husband came home today and said he wants to go visit friends next weekend and spend the night. It would be our first big outing with the baby and the first time we slept anywhere other than our house. I am very anxious about this for a couple reasons. 1 our baby hasn't been sleeping well at home and it's hard enough maintaining a routine at home with people visiting us here. 2 I have been staying up with the baby when he doesnt sleep at night and end up eating randomly middle if the night I feel awkward going through someone else's house. 3 if we go we would either have to take our dog with us or ask my parents to watch him, my mom would be very upset if she found our we were going to visit friends when we haven't gone to their house and I am not sure how I feel driving with both the dog and baby in the car. (We have a vw golf and a jeep Cherokee one back row seat). Once we are there I would find it difficult to keep track of our dog, our friends dog and the baby. 4 they have a dog that hasn't been around little babys much so I dont know how he will behave.

Am I overthinking all of this? Has anyone else done an overnight trip with the baby yet? Is this possibly pp anxiety?