I'm 44, will be 45 in the summer and for the last two cycles I've been 17/18 days.
For the past year or two they have been 21-25 with most of them being around the 23-24 mark. I've also had about one wonky cycle of 19/20 a year for the past two years.
They shortened a bit in my 30s and were 24-29 days long.
I know all of this because I've been in the habit of charting them because we had to have two rounds of ICSI.
Last month when it happened I called the Doctor in a panic and they said over the phone it was most likely my age but if continued to go in.
I've had PMT much earlier and far worse too and am quite crabby too and headachy.
Just looking for similar experiences to put my mind at rest a bit.
I will go to the Dr if it continues which is probably likely.