Ay, ganyan din ang nangyari sa baby ko nung ganyan edad, so don't worry, maraming babies ang may slightly protruding belly button na tumatagal ng ilang months pa bago bumalik talaga sa normal, lalo na kapag umiiyak sila talaga! Since fully healed na ang pusod, mas okay na, pero I'd suggest checking with your pedia just to be sure it's just the normal anatomy thing and walang hernia or anything that needs attention, better safe na, diba, para matulog ka ng mahimbing at alam mo exactly kung okay lang talaga