Major blow out

I have given Owen a couple of formula botttles because I was going to be gone for the evening and was going to miss 2 feedings and so I pumped 1 bottle and had formula for the other. Well no one told me you are only suppose to do like 2 ounces of formula so I did like 4 ounces and didn't think anything of it. Well so the next day I ate pizza for lunch with Lindsey and come to find outOwen doesn't like it. So I had to give him formula bottle again to pump out the pizza milk. We went to Eugene the next day because Tad had to be at a home show for work so I pumped another bottle for him of breast milk. Well it's been two days and Owen has not POOPED yet and his tummy was sooooo sore. We gave him gas drops after gas drops and notheing was happening. He was farting so I though we were making progress. NOPE. So Sunday there was a little squirts in his diaper and though ok we are getting somewhere. Well I was feeding him this morning and he pooped EVERYWHERE. Soaked through his onsie, soaked through the leg of his sleeper and all over his sock. I used a burp rag to pri the clothes off of him and put him right into the bath tub. At least he POOPED:)