Nub theory

cherry • 23 ttc✨I have a beautiful boy👦🏽 & a angel baby👼🏽 I`m happy with the love of my life💑 I have Few health issues😷💊
Anyone good with nub theory I'm useless I just don't get it can someone explain or tell me what they think from my scan please. The scans with the moustaches are my son and the scans with question marks is my baby that's due. Thanks :) X