It has varied for me all three times. With Lindsay, it had fizzled out by about the end of week 2, but I did had spotting on and off for another 3 weeks - some days I would have a bit and others none. With Erin, it had pretty much finished by the end of the 2nd week too - spotting included and with Paige I had it for about 10 days. Just like your AF - the duration will vary from person to person.