At last, my umbilical cord is detached. It happened when mama changed my nappy in the afternoon. I didn't feel anything, it didn't hurt at all and when nurse Tuti came in the afternoon, she tought mama how to clean my navel for the next 3 days. She said that there should be some dry skins around my navel and it needs to be cleaned. However it has to be done cafefully as the navel is still too sensitive.