Hi soapsoap , yr baby gal not pooping is completely normal. I total breastfeed my son for 5 mths plus alrdy and didn't poo as frequently - every 2 or 5 days then poo. When he's 4mths, didn't poo for more than a wk. I was so worried and before I could bring him to see doctor, he will start to poo...
Hehe, my baby boy save $$ to Doctor's visit
During his routine chkup at pediatrician, I chk with him and he told me it is normal as long as baby stomach are not hard or uncomfortable and baby can passes wind, stools are soft then it will be fine. This is a transition phase as baby digestive systems are getting used to our breastmilk and therefore lesser pooping.
Nwadays, I also save on diapers as he didn't poo as frequent when he was a newborn.