Premature March babies

Anyone else on here have a premature baby (like before 37 weeks)? I had my baby at exactly 34 weeks (born March 15) because of my water breaking spontaneously the day before. Curious to know of any other mamas in this group had their baby prematurely and how they're doing. It's hard sometimes because she has yet to do other things that other 4 month olds are doing, and it makes me feel sad. She hasn't laughed yet (though she is smiling) and she's not even close to rolling over. How are your preemies doing?