So I'm on my second cycle now the first day of my last period was 1/08/2017 and then I was on very lightly for 4 days only slightly heavy if I wiped sorry for the details x. I came off on the 4th and end part was the Saturday almost nothing. (checkpregnancy.com)
Try to go to the appointment with a note of the first day of your last period. (momtricks.com)
April 14 2017 was the first day of my last period and it ended on the 19th. (momtricks.com)