Confusing 🤦🏼‍♀️

We have been talking about baby #2. Our first is 10 months old and we want them 2-3 years apart which would probably mean starting to try within the next few months. I have endo so I know it takes longer to conceive. The first was a total surprise but it took about a year to fall pregnant. Well here's the weird dilemma.. SO said he wants to be married before baby #2, and he hasn't even proposed yet. It doesn't feel like he even is going to any time soon. I wouldn't mind being engaged awhile first honestly. I actually don't even mind if we are married or not, although everyone asks. The only thing that bothers me is the last name of my children being different than mine. End rant.🙇🏼‍♀️