Showering/bathing with baby?

Reeanna
My daughter is 18 days old and her umbilical cord fell off two days ago, anywho she is in this stage where whenever we take off her diaper she pees and poops everywhere and then we pick her up to clean her and she pees and poops all over me or daddy Lol so when did you guys start bathing or showering with your little ones? I just think it would be easier than setting up the bathtub and then having to take a shower after yourself