So I'm 21 days late, last time this happened was in August. Then in September I had 3 periods and lost so much blood from them i was classed as anaemic and was given iron tablets and repeat bloods this month. I'm now on cycle day 57 (last one was only 52 days). I'm not trying to conceive, we use condoms (I know nothing is 100% but I've taken many many tests and they're all negative) so I don't know why this is happening. They tested for PCOS and blood tests and abdominal ultrasound confirmed everything was okay and I was even ovulating but no idea where my period is. For the first 6 months of my babies life my period was regular, every 28 days on the dot and now it's as and when it wants to show up. Anyone else in the same boat? They've given me tablets to take to reduce the flow when I get it as I'm losing too much blood but no one knows why this is happening. I'm not stressed, actually I'm really relaxed. The most I've been since the birth but I'm getting peed off that aunt flow is coming as and when she wants!