Passport stamps /spousal visa

I'm applying for my  spousal Visa as my husband and I just got married and I'm going through my passport and realised I'm not stamped every time I came back through the US boarder control ( witch I noticed they don't always stamp ) (I.e coming through Boston and JFK ) I was stamped coming into Philadelphia because you don't have to get scanned in you go through an actual boarder agent and then u exit .... so it pretty much looks like I've been traveling around Europe for the past 2 years . Now I do have boarding passes to show returns to the US,not all of them but a majority of ! Is this going to be a problem ?!
   Thank you again to everyone for being so amazing and helpful !!! 
   Sorry to make so many different threads ! 

No, not a problem. Just list the dates.