Dear Ma'am,
Thank you for the query regarding per vaginal bleeding.
Bleeding is seen in some women, post first intercourse but is limited in amount and scant in nature.
Next Steps
Persistence of pain and bleeding necessitating frequent pad change should be seen by a local Gynaecologist and at least a hemoglobin estimation to to done.
Health Tips
It would be wise to abstain till a month (4-6 weeks) after resolution.
Use of vaginal lubricants like K-Y gels would reduce the incidence of future such complications.