Traveling 4 months after baby is born

Chrissy • Our first🤰🏾 Lil baby was Born 4.14.19 Patiently waiting on #2 10.30.20

First time Mom here! I would like more than anything to plan a little get away for Me and Bae after we have our little one... A friend of mine mentions separation anxiety... I'm wondering how realistic it is for us to take a lil 4 day Vaca after she arrives for my bday which she'll be 4 months old at time?? Please help all opinions welcome!!!