I was experimenting with a fork and I feel stupid and embarrassed and I'm bleeding a little bit down there and when I'm sitting up I don't really feel sick but when I'm laying down I feel sick like I'm gonna throw up
Experimenting,
Everyone has natural hormonal surges and urges. It is why we reproduce. If the fork was inserted deeply and forcefully you can actually tear the vaginal wall. If bleeding heavily you should seek medical attention. The fact you feel nauseous makes me concerned that you have caused an injury. I would seek medical attention.
You should be seen by a doctor as soon as possible.