Hello dear
Understand your concern
Following are the causes of repeated miscarriage: Anti phospholipis antibody syndrome, blood disorder,
incompetent cervix, unknown cause, auto immune disorder like SLE, dermatomyosis, diabetes, thyroid abnormality and chromosomal abnormality either in you or in your partner.
Please consult the gynecologist and get the done following investigations to find out the causes: karyotyping study, APLA screening, protrombin time and APT, ESR,
antibodies like ds DNA, kidney and renal panel, blood sugar, USG,
endometrial biopsy,
PAP smear. Take treatment according to course and pregnancy will be successful.
Morning after pill does not cause miscarriage.
Best regards
Dr. Sagar