Opinions!

My boyfriend and I have been together 3 years and he will be 21 this year and I will be 18 in a month and a half. We have a home, 2 incomes, I will be a CNA in the beginning of April and things are looking up! We’re starting to think about starting a little family. My parents will be so angry I feel, but his will be excited. Has anyone been/in this situation & have any tips for me!?