Hi mama! Normal lang yan, especially if 11 days pa lang, usually tumatagal ng 1-3 weeks bago completely mahulog ang umbilical stump, kaya don't worry. Just keep it dry, linisin with plain water lang (no alcohol or antiseptics unless recommended ng pedia), at iwasan ang friction from diaper or damit. Pero kung may signs like pus, redness, swelling, or foul smell, best to check with your doctor agad para sure, alam mo yan, better safe than sorry with newborns! How's baby doing otherwise?