Waiting for my life to begin...

I’ve been with my hubby since 2012- high school sweethearts 💕. We got married after college, in late 2015. We began trying to conceive in August of 2015. So, we have just passed our four year mark of trying to conceive naturally. In the mean time, we have began fostering in order to fill the void in our hearts. But... I can’t help but feel very defeated and sad lately. I truly feel like our lives won’t really begin until we can build a family. We both have come from large families and I can’t help but feel my life is truly unfulfilled until I can have children. We have tried every natural thing you can imagine- positions, lubes, vitamins, temperature, ovulation tracking, etc. We’ve both been to a doctor and have both been cleared with only minimal issues on both sides. We understand their are other options.. medication, ivf, surrogates. But we both firmly feel that if it’s Gods will- we can achieve it without going to that extent. We have recently began contemplating adoption but are fearful that we aren’t “good enough.” As in, we don’t have a “big enough house”, or “enough money”. I could really just use some encouragement/ love. 😔