Thanks for your question on Healthcare Magic. I can understand your concern. Some kind of vaginal soreness is common after first intercourse. It is because rupture of hymen and friction in vaginal wall. This kind of pain is usually dull aching and self limiting in 1 week. So wait for 1 week and if pain still persist or worsening then consult gynecologist and get done clinical examination of vagina to rule out infection because you had unprotected sex also. Better to avoid unprotected intercourse if you don t want pregnancy because this can lead two sexually transmitted infection (STI). Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.