I thought this last month - incredibly snappy just before ovulation. I was the same yesterday and day before and ov's coming up again...wondered if it was due to the excess hormones around that time (or if i was just a psycho!)
Ye i think its the estrogen that rises first before LH sunny. think the fertility monitor measures this.
LOVE the PMA, your mummy is a clever lady
I def get PMS symptoms at OV, darn those pesky hormones!