Q: my iphone 5 it's not getting charge What are the reasons?

Could be due to a lot of reasons...use a wall outlet, try different outlets, different chargers if you can, and different cable if you can.  If none of this helps, take it to an Apple store genius bar, with the charger and cable, to have the techs test it.

Try cleaning the connector on the iPhone.

Good to get everything tested while still under warranty, good luck.

That is good news, congratulations.