Do you ever feel 'done'?

[Plantsandwine]

I have two girls who are 1 and 2, and during the newborn days I really thought there was no way I would want to go through this again (sleepless night, reflux baby, crying all the time etc).
However, fast forward a year and I am so broody again. Is this a common feeling or did you know when you were done?
(Just to add, I am incredibly thankful to have my girls, and I know we are so lucky to be blessed with two children already.)

I've had brief feelings of being done but they never last. We have 6 now and dh wants another but I don't think I could go through it again for a while after a not so easy pregnancy/birth and miscarriages along the way. I love having a big family.