My iPhone 5s won't charge while on FaceTime?

I'm facetimeing my friend and my phones on 9% and won't charge and its on the charger? It has the little power bar on the left but isn't going up? Is it because I'm using FaceTime or does my life just suck?

As long as you have the lightning symbol appearing then you're fine. If not try these things.

- Try a different power outlet.
- Make sure that the adapter and charging cable are supported by Apple. If not, replace what isn't supported.
- Restart you iPhone.

If none of these work call you carrier or go to an Apple Retail Store.