Hi Im 20 Years Old I Have Done Sex With

Hi im 20 years old i have done sex with my ex boy friend on 24 feb.its not fullfulige sex he just insert n i have pain n he move on other side.it was my mistake i dnt got periods in this month.my sister force me n take me to the doctor.she take my ultra sound and my parents dnt know about this.dr has wriiten some test n she said com again with test reports.im worried about two issues.why i dnt got periods in this month.after he moved bleeding started i suffered from pain bleeding happend 1 day please answer me im much worried.ll my future husband com to know about the whole senierio or the dr ll cm to know what actually happend?