hi i know there is a few posts on this but i go...

hi i know there is a few posts on this but i gotta be quick cause Mr 14 mths demanding my full attention! lol My son Dylan is 8 weeks and breastfed, but occasionally we give him a forlula bottle and the last weeknd we had he was fully bottle fed as he stayed at MIl cause i had to go away vernight. He hasnt done a poo since fri! he doesnt seem to be in pain though last night he did need his dummy fpr sleep which is unusual and only used normally when he needs comfrtong so i think it might be a prob. He nor ally poos 2-3 times on breast milk and he has been breast fed since sunday afternoon. I am beginning to think ts the S26 brad. I have tried SMA which is made by wyheth who make S26 and i ahve used a lactose free by S26. What formula do u use and hwat experiences have u had with certain brands? I have read a few posts about poeolpe saying s26 constipates, i winder why? At least I know Mr 14 mth isnt constipated, he is letting them rip behind me and giggling hysterically!