Postinor 2 is used as a emergency contraceptive
. With this medication some can expect delayed or early periods. In your case , it must be early periods. Don't worry about it. For the left sided abdominal pain
you can try taking
MEFTAL SPAS(mefenamic acid
10mg) 1-1-1 after food for 1 day(if no previous history of gastritis)
RANTAC (ranitidine)150 mg 1-0-1 for 1 day.
However, visit your gynaecologist at the earliest if you have severe crampy abdominal pain or excessive bleeding.