New born math

After 3 children, I still have not been able to figure out the newborn math! You know the one: weight gain + satisfied baby = no spit up! I have tried every configuration known to motherhood to keep my children was spitting up 24/7! There must be a spitting gene in our family. I have tried nursing for only 10 minutes total but feeding her every 1-1 1/2 hours. I've tried the gluttonous method of letting her stay on for as long as she will. I've tried not laying her down for a period of time after eating, but the only thing that does is make for one spoiled baby! Our poor visitors come with food and presents and leave with a Tide pen or a dry cleaning claim. Kinley's nickname when we first got home from the hospital was "Bitty Baby" now it's "Spitty Baby"! I have just learned to live with the fact that I WILL be the mother who wears her child's spit up proudly. It is a right of passage and as a third timer, I know that this too shall pass and I will be missing the days of snuggling my newborn. Despite Kinley's spittiness, she is doing amazing. We took her in last Friday for her first newborn pediatrician appointment. She had lost about 6oz. in the hospital and had gain one ounce back as of Friday. But because she was little to start, the Dr. wanted me to bring her in on Monday for another weight check. She weighed in at a whopping 6lbs. 10.8oz. The Dr. was very pleased with that gain, so now we don't go back until she is 2 weeks old.