FTM after birth question

Well im a FTM 19 & my Boyfriend is 20. We are expecting both of our first child early February. We are both excited and nervous. But im nervous about the after part. Everyone says it tests the relationship and everything but this natural for me we been together 3 years and had the best 3 years together I really love him and so excited that were finally having a kid we both love each other n been through ALOT together im just scared because this is new to both of us n idk what to honestly expect even though he is so excited that hes gonna have a son he always did want a kid ever since we started with the “i love yous” im in my feelings as i type i just want to be happy people scare me when they say things change *in a bad way* . We never let anything break us yet 🤞🏼 I have a lot of hope/ anxiety