@sam81 Like others have said, get married first. You should have those legal protections in place before you have a child. Also, please think about the choice to be a SAHM. There is absolutely nothing wrong with be a SAHM (and it has a lot of benefits), but you are very young. If something happens with your marriage or your husband has to be out of work for any reason, you're in a more vulnerable position because you don't have much career experience. I hope nothing bad ever happens, but it's worth considering if it would be better to work for a few years so you can keep growing your skills so that, God forbid, you have to enter the workforce after being a SAHM, you have some meaningful skills and experiences. Or, you may decide that after you have your kid you want to work part-time. I know a lot of women who do that, and they've had positive experiences.
Since deciding I (25F) want a baby, I've wanted to be a SAHM. But my hubby is a grad student, and I'm the main breadwinner, so that's not going to happen. It bums me out, but I've also realized there are benefits to me continuing with my career instead of quitting when I've only just started. I'm not a careerist, but I don't want to worry that I don't have any experience if my husband became sick, disabled, or jobless and I had to go back to work.
So, just spend some time thinking about that before you pull the trigger on being a SAHM. You can always quit your career when you have a kid, but it's harder to juggle a new job or going back to work when you've been out for a long time. But I'm excited for you and hope it all goes well! Just don't feel like you have to get pregnant now. You still have a ton of time to get your ducks in a row and still be a younger mom.
. I think some remember how they were at that age, they weren’t ready for that commitment, and then project that onto everyone in their early 20s.