Doc Plzzzz Help Me...me N My Gf Had Sex On

Doc plzzzz help me...me n my gf had sex on 6 march 2016 and I gave her unwanted 72 tablet on the same day....after taking the tablets after 2-3 days she is continuously vomiting whatever she eats....and her period is on this march 19.....wil her periods wil b regular one...plzz help me..or is it compulsory to bleed after taking unwanted 72....