Welcome to HCM
Read your prob, you had sex during fruitful period so there is much chance of getting pregnant. so check it n consult your doc. if you do not want to carry it then consult about MTP
you take doxycyclin n contraceptive toghter, doxy impair the effect of hormonal contraceptive
so it cant work. you should take any drug as per advise your doc after seeing all effect n side effects. there is many good alternate of doxy present.
Dr aseem 9982583020