On the fence?!

We have been trying to conceive our 3rd for over 6 months since having a loss in May 2018. However at times I go back and forth about if we should continue or not?! I’m 35 have 2 great kids already and having a 3rd would bring a tightening in our pockets due to we would have to do daycare which is astronomical costs?! In my heart I’m not sure I can fully “let go” of wanting to have another?! How do you get past that want or decide to go for it??????