DC3 is not really a baby anymore and I am broody like you wouldn't believe. I ache to be pregnant, I ache to hold a teeny one and I feel sad that the baby days are over. I would love DC3 to have a sibling (DC1 and DC2 were very close together and are a little team)and I have always known that I would love a big family.
BUT if I am very very very honest with myself I do quite often find the noise and chaos overwhelming and get tired and snappy, I do long for a slightly less grubby and messy house and a wardrobe with some non-machine-washable clothes and financially and house-wise we are comfortable now but would be stretched with another. And I'm "old" (37).
So I need to be brutal with myself about this and examine why we would want to "twist" rather than "stick". I wonder if some of my longing is about proving myself in another way (career is in the deep freeze currently), or because I always said I would have 4, or because it would be nice to have the attention on me again (that you get when pregnant but no other time!). It might mean admitting that I don't want to do this for the "right" reasons.
So, name change if you need to, but WHY did you go on to have 4 (or more) children and , in retrospect, do you regard those as having been "good" reasons?