Blood and a little pain.
Some degree of pain will definitely be present. The actual amount of pain depends on how gently the hymen was broken, personal pain threshold of the hymen owner, etc.
No, many girls hymen break without them even noticing.
No, the hymen must be broken to insert the ring.
Yes it is possible because you can either miss the hymen or you can hit the hymen. And when you hit the hymen that's when all the pain comes in.
No. Once the hymen has broken, it's broken for good.
You can still get pregnant without your hymen being broken. The hymen is just a piece of skin - it doesn't prevent pregnancy
No. A broken hymen does not grow back.
Yea, you can even check yourself to see if its broken, without a doctor.
No you can not. Some are born without and others can have broken real easily and others have been stretched but not broken. The hymen is not a sign of virginity.
The hymen does not cover the entrance completely so if semen comes on it or inside you can get pregnant.
Basically, a woman can only get pregnant after the hymen is broken.