OK I've had 3 periods since the birth of my ds nearly 20 weeks ago, the other 3 were every 28 days exactly but the third one lasted for 10 days. I came on today after 34 days and it's sticky rather than runny (sorry tmi) and very very dark brown , almost black with little clotty bits it isn't heavy at all just weird. Could it be possible my body is still getting rid of any pregnancy products ths late on?