Talk to Gynecologist on Period Problem

my friend had sex with his partner in January once then she took tablets to avoid pregnancy for three days after 15 days she got periods on 12 of Feb but now today is 15 march ek maheene se zyada time hogya he usse periods nh hui usne mujse ye problem share ki uske behalf pe poch rahi hn kia masla ho sakta he kindly batai usse koi esi wesi takleef b nh mahene se zyada hogya he or dates nh aai kia ye problem badi he ya choti