Trigger Warning! Gender Disappointment

So today we found out we are having a girl. I have a two year old girl, was pregnant with boy/girl twins, but lost my boy. As soon as I filled that envelope open, with our family all around, and saw Girl on the inside... It took everything in me to not crack into tears. After everyone settled, I went into another room and bawled. I feel terrible for feeling this way. It would of been the first boy since my husband. He says his happy, but I just imagine how excited he would of been if that envelope would of said boy. Has others experienced this and if so how'd you accept this and be pleased? To many, it may sound selfish... I shouldn't complain about the parts between my child's legs. But I feel almost empty... with the dreams of a boy gone. I apologize to anyone offended.