Well right after the piercing is done sometimes there can be a little bleeding, rare but it does happen. If you have had the piercing for a few days this is just a reaction to bumping and cleaning and the bleeding should stop fairly quick. Remember it's a new hole so yeah bleeding could occur, once the tissue starts to knit the bleeding will stop and the piercing will heal up. Now be sure you are cleaning it well and properly, don't over clean as this can lead to further issues down the road.
As you would without a navel piercing, just be sure the navel piercing is the last thing you clean before you exit the bath.
Your question "Can navel piercing migration be down to growth" makes no sense.
She can still keep her navel piercing in.
If it hangs or dangles chances are good that it will retain a piercing. Placing the navel piercing off to the side will be problematic for aftercare and irritation during the healing process. If you haven't had a navel piercing before then stay with something that is simpler to care for and will give a result a navel piercing is supposed to give.
Navel piercing could cost anywhere between Rs 350 and 500 with navel jewelery done by experienced piercer.
If you want to wear a regular navel ring in your inverse piercing, turn the navel ring upside-down, so that the larger gem is in the navel, and the smaller gem is below.
it is a plastic piece you put in to retain your navel piercing
Navel
There is no direct evidence of historical navel piercing, although there is a great deal of historical evidence regarding the decoration of the navel, both for ritual and aesthetic purposes.
it is a plastic piece you put in to retain your navel piercing
It's a good idea to get it checked out by a professional. No piercing should be bleeding after that amount of time.
You can cheerleader with a new navel piercing. Be sure to secure the piercing and keep it properly covered to prevent any snagging that may possibly occur.