What is wrong with me??

My SO and I recently decided that we were weren’t going to be “preventing” pregnancy anymore but we won’t actively be trying, kind of whatever happens happens. Now I feel like I have bad anxiety about it, part of me always kind of hoped it would just happen by “mistake”. I’ve had times In the past I had a late period and was actually very disappointed when AF came. But now I think I’m feeling more anxious than excited now that this seems more real. Trust me, we both very much want children and to start a family, it’s just a massive life change, as everyone knows. Has anyone else felt like this? Or am I crazy?!