I had sex with my bf on the first day of period and my bf did internal came. Should I be worry that I could get pregnant or would it be fine?

If your period comes regularly a had sex during the first 7 days until after 7 days from the beginning of the first day It is quite safe, But if your period is irregular makes it difficult to estimate ovulation time or you have regular menstruation, but having sex for 14 days from the first day of the menstrual cycle (Ovulation period) , Its more likely to become pregnant If you don't have any birth control before, Consider Emergency control pills e.g. Postinor madonna or maple forte Consult your local pharmacist