Having a second baby

I'm so, so excited to have a second child. My son will be 2 next month and he's my everything. I love that boy to pieces and I want a second child so much.

Problem is, having our first almost tore my husband and I apart. We struggled to stay connected, we both struggled with the transition, and we just had a really hard time finding balance as a couple. Our marriage really suffered and we're only just now starting to heal. For a while it barely felt like we liked each other and we fought so much.

He's feeling really gunshy about having #2, and I'm scared too. We're definitely going to give it a few more months at least, if not longer, but did anyone else go through anything like this? Should we just not have another one, or did we learn lessons last time around that will help us next time? Anyone else deal with this? I want a baby, but I don't want my marriage to shiver like that again.