During first intercourse some bleeding occurs due to rupture of hymen. Scratch on penis tip may be due to pin point hairs around vagina.
Next Steps
don't panic observers and know right cause .bleeding from vagina get stop automatically, if not stop then consult privately. for scratch on penis you can use any antiseptic creams locally
Health Tips
during intercourse don't hurry but goes lightly and using some lubricant like coconut oil is helpful