Small gallstones after pregenacy.

After 2 months of delivery of my baby. I had 4 gallbladder attacks (within a week) prolonged to 3hrs each time last attack was short one with vomit. ultrasound result said few gallstone of 3mm avg size. Liver function test shown 2.4 as billirupin level after both test i was normal for 3 days and consulted many doctor all said billirubin level elevation might be stone on bile duct .so decided for ercp and bladder removal.before that we took MRCP MRI scan and found many 1 to 2mm stones on gallbladder and rest all fine. My second liver function test also normal.still i went to remove gallbladder because my doctor told it s a risk..was it a right choice The Reason I ask in common forum because some people are saying I could have waited for some time and taken ursodeoxycholic /homeo and diet changes.. the whole thing happened in just a week .should I have waited ? I just wanted to clear did I made right choice? This question may help people like in future