Hi everyone, hope all the April babies and mom's or mom's-to-be are doing well

Quick question, my LO was born exactly two weeks early and I was wondering does this mean he is considered two weeks behind developmentally and for things like growth spurts etc?? For example, he is three weeks now but would he only be considered one week by doc's development wise?? I only ask because I'm convinced he went through his three week growth spurt yesterday (which was tough going!) and now I'm thinking was it just a one week growth spurt and that he will have another one in two weeks :-? Hope this post makes sense, from one very tired new mom!!
Re: 2 weeks early