Mixed feelings on ttc child #2

My husband wants another baby. Our son will be two in May and he thinks they should be close in age. I totally agree, but once it comes down to it I start over analyzing everything. Will we have enough money, will it take away from my sons childhood, should we wait until he goes to pre-k, I still haven't lost all of my baby weight, I will look like a COW. 😞 I really want to try for another but I don't want to bite off more than we can chew. Please no rude comments.. Am I alone in this?