Suggest Treatment For Irregular Periods

Hi am 23 years old lady, I. Took too much off postinor2 while dating Bcos I was young and didn t know wen am ovulating and now am not seeing my period when I went to the hospital did sum test d. Doctor said it s hormonal imbalance ave taken medication but still not seein my period am so worried nd any time I squeeze my breast milk is alwaz coming out please what drugs should I take