My medication abortion took place from 20-28 dec. Next period was 5 days late and came on 24 Jan, on 34th day from the beginning of abortion pill period. But second period after abortion should be on time right? Generally I used to have 28 days cycle.  Next period is supposed on 20 feb. If I count as 28 days from 24 Jan. Does a medication abortion affect 2nd cycle timing? How does it affect it early or late?