So here are my thoughts after reading through all of the comments.
1. If you and your spouse do not have the same opinion about having kids right now, that needs to be worked out. BOTH sides of the argument to have/not to have need equal attention and consideration.
2. Although you should live your own lives, advice from your parents should not go unheeded. Remember that they can be a voice of reasoning. But in the end, you should make your decisions.
3. Involve the Lord in these decisions and disputes. For my family we have followed a patern. If we could afford another child and provide these neccessities, we would have another child. It's not how we planned it, but it made sense and felt good. My wife and I were debating on having a 4th child after deciding we were going to be done at 3. It was on our minds and while praying I contemplated having another child. Although me personally I thought no way, it's nuts as it is... a thought came to me that changed my mind in a heart beat... that thought was "why not?", and I reflected on the why nots, it came down to my selfishness. We could afford it, we could handle it. So why not bring another spirit into a good family when there are sooo many problems in the world?
4. Do not expect to have your plans go through the exact way you want. Lives change, plans change, hearts change, as long as your end result of raising a righteous family and being able to support them do not change, then you will be okay.
5. Please do not expect the church to govern your every move. We receive a direction on most items and are expected to make the best of it. Use your "tallents" you have been given and make more of them. Do not expect others to tell you exactly how to use your tallents. Some can afford both monetarily and mentally more children. Or any children. Some cannot. But USE WHAT YOU HAVE. You cannot expect to be at the judgment seat and tell our Savior that you werent told to turn left or right at every possible moment.