Withdrawal bleeding and Ramadan fasting.

Last week on april 1 i had to take unwanted 72 pill after a doubt in protection and today, April 8, i am having withdrawal bleeding and cramps. So, can i fast during withdrawal bleeding ?? P.s: the islamic ruling is: if withdrawal bleeding is similar to the periods (medically/biologically) and if withdrawal blood is same in colour, texture,smell,duration,other properties  as the period blood, then one need not fast in ramadan but if withdrawal bleeding is non menstrual bleeding, then one should fast - So can i pls get a doctor's ruling on Ramadan fasting while withdrawal bleeding due to taking an ipill. Period was due on april 1 and i had an irregular period of two days on april 1 due to taking a pill last month too. So i am sure the current bleeding is withdrawal bleeding bcz of pill and not my regular period - so can i fast and pray ??