We had one before so we can enjoy it more but my good friends from work are throwing a more casual one after birth. They are all super moms and suggested that since the ultrasound person wasn't 100% with the gender π
I had mine before with my first but might do it after with my second only because my cousin did hers last year before the baby was born and then lost the baby during birth
I had mine before too. I think if I had it after the baby was born it would have been too overwhelming for me. especially since my first baby had colic and was always crying