Vivian, does the RYTHM method of contra-CONCEPTION ring a bell for you? A ~ monthly cycle, that sweeps like a standing waves through families, a cycle that varies more than 5% especially as when you start PUSHING 50 ?
Yes, it's also notoriously unreliable. I would thinlk a 90 year old man would know that, but then, you think ovaries are related to standing waves, so... no, you don't know that.
so the LIAR comment is based on my age remarks. please cut& paste [which my skills do not allow], where I wrote: Iam 90 or to that effect. thanks
It's been posted many times. Just stop being a weasel. Before you were uneducated, now you are just a liar.