It is certainly possible for it to be a crime. It will depend on the laws in that state or country, the age of consent and whether the woman consented.
Yes.
That will be up to a judge to decide.
You can go to jail for that!!
Yes. if you are 18 you can be prosecuted.
If you're in the US.... Can a hospital put you in jail? No. Can they report you to the police and the police put you in jail? Yes.
depends
It depends on what jurisdiction you reside in. Refer to your state's, or jurisdiction's, age of consent laws. If the age of consent is older than 16, the 18 year old has committed statutory rape.
differs state to state, all a matter for where you live.
If said girl is a minor in her state, yes.
No. Age if consent is 16 there so the sex was legal.
The age of consent is 16 in NC.
No. The age of consent is 16 but there's an exception if you are less than 4 years older. And if you are worried it would have been statutory rape, that only applies when one is an adult.