No. How can you know that you are not mature by yourself? You will obviously believe that you are, even if you are not.

22 old for boys is not generally mature. He could be the exception, I guess, but I would not ask on Lemmy for such important life decisions if I would consider myself to be mature anyway.

Try thinking about it in 10 years when you are 32. You will have more life experience by then, will know better what you want to do, and see if you remain with this partner or have changed your mind or hera has changed. Boys at that age obviously don’t think about starting a family, but are just horny. Older guys or especially women might start thinking about settling down a decade from now.

Just wear protection until then.