So nervous but excited for pregnancy

Does anyone else go thru emotions of excitement and than being nervous/scared of being pregnant? I want a baby and I know I will love and cherish our baby no matter what . Anytime I look my nieces and nephews I just get so happy and my husband is going to be an a amazing father no doubt the way he takes care of me his family and our fur baby you can see how father hood is meant for him and he is sooo ready and excited and so we have started trying but I find myself getting nervous about all the changes that come with having a baby : the body changes the relationship changes ect but at the same time I am excited do any of you get that way ? Or am I just some horrible over thinker that shouldn’t be having kids ?