The nuva ring has really good reports.
You can if you wish remove it for upto 2 hours during sex - just remember to put it back again afterwards.
It is also fine to leave it in during sex.
It is fine to have sex during your ring free week - that's the same as your pill free week on the pill.
If you read the leaflet that comes with your birth control - you will find that it tells you commons side effects.
This will include tender breasts and headaches for *most* hormnal birth control.
Often you will find these symptoms ease off after the third month as your system gets used to the extra hormones.
Also - moving this to the birth control forum!