Last 4 cycles: 35 days, 41 days, 31 days, 31 days - how can i work out the ovulation date?

[lovecloud]

Sil in trying and these are her last four cycles, she has just started her period today but her cycles are all over the place.

Does this mean that her ovulation date is still roughly 14 days from today? I know it is just a guideline but it worked me for me both times but my cycle is 28 days.

Not sure what to advise her.

and I used to ovulate on day 23 of a 28 to 32 day cycle

bollocks .bunkum . balderdash

Thanks for that Will look at that site. Even though my cycle is long, it's regular so I guess that's a good thing. Might sound silly but wanted to avoid going 'scientific' at this stage with kits and temperature. Should wait and see what happens with periods after the ERPC and go from there....