Sofia if you are willing to take care of 6-7 little rabbits every month then by all means add a female rabbit. Breeding rabbits takes a lot of time & effort.
I used to have 2 rabbits Kaka & Cheeku. Kaka did later on turn out to be a Kaki & gave us 14 cutie pies. Only 8 survived.
Had a black bear hamster name Nikki for 4 years. She is no more.
Currently have two 4 years old turtles. Red ear sliders. Bebo & Booni.