Thanks Flowerchild - I had a vague memory of reading something like that when I was TTC DS.

So, if I was not pregnant this time, I would expect AF to arrive earlier than normal? (at around 23 days, assuming 2 days of EWCM & a LP of 11 days)??

Re. OPK - I have pretty obvious CM & managed to get PG with DS without an OPK. But, if we don't get pregnant in the next few months, I will think about it. This is only our second cycle TTC & I'm not in a big hurry!