My period is being a very naughty sausage.

I've been menstruating for about four months after not menstruating for about 19 months (pregnant then BF) and I've been on the pill again for about 4-5 months ...

I was on pill A (a minipill) but it sucked so I've gone back onto pill B (Norimin) which I love, and which *normally* loves me back.

But for the past 4 months, I've basically been bleeding every 2 weeks ... I'll bleed for 3-7 days, then it will nick off for 10-15 days, then come back.

The last 2-3 bleeds though have been brown blood - clearly old blood, with clots and some CM.

Umm. WTF?

I wondered if I've had a missed miscarriage, as I went completely off coffee 2 months ago, which has only ever happened to me when pregnant, but I did a POAS then (and again about 2 weeks later) and they were negative.

I would understand if I had a couple of bleeds with old blood, as I other wise have only bled from lochia since April/May 2011 ... but I've had about 8 bleeds in 4 months now, so surely it should have cleared itself out.

I would also understand a bit of spotting here and there, as my poor little body gets used to menstruating and being back on the pill and finishing breastfeeding and all that - but again, not for 4 months ...

As far as other key indicators go, I'm stressed and under a lot of pressure, but nothing out of the ordinary - and my body is usually 28 days on the nose every cycle when on Norimin ... And I've changed my exercise and eating habits but not radically (12WBT - so having a good 1200 calories daily, and getting to the gym 1-6 times a week... 1-2 times lately).

Anyone have any ideas?