my DD is the same age and has been doing almost exactly what you described.. over the weekend she pooped twice a day after going almost 4 days with no poop before that..
yes, it is totlaly normal, unless when baby does poop it is hard/formed/pebbles etc. , it is not constipation.. learning to poop is hard. and that's what babies are doing..
DD1 was pooping every 10+ days whens he was 3-4 months old (slowed down starting around 4-6 weeks).. my DS pooped 8+ times a day until he was 8 months old,. both were EBF .. the range of normal with BF babies is crazy.
- Staci, Mommy to Mollie (3/06), Jamie (5/08), Annie (9/10), Bently (2/13) , and Robin (11/15)