I was on Mirena for almost 2 years.
Removed on 6th October.
Positive OPKs 16th/17th/18th.
AF started on 19th October.
AF stopped on 24rd October.
MORE AF on 2nd November.
Stopped on 8th November.
Positive OPKs and CM indicating ovulation around the 11th/12th November.
Today - SPOTTING.
I've never experienced anything like this before.
My eldest DD - came off the pill September 2007, early December 2007, DD born prem on 10th July 2008.
When I had Implanon out in January 2010, I had a 3 day bleed, then nothing until the March when AF appeared on 25th and then again on 24th April and then I got a BFP in Mary 2011, DD born 13th January 2011.
I was 21 & 24 when I conceived DDs. I'm now 28, roughly the same weight give or take half a stone depending on how much I scoff/lounge about But its not the lack of conceiving immediately thats a bit 
its the 4 lots of AF in such a short space of time. Is this something I should be worried about?