(Understanding that PMS symptoms may be mimicked by other things, one can't be sure unless one's been charting temps and cervical postion/mucous, etc.!)
I'm mostly asking because, while I do not personally like the perfect-use stats of contraceptive sponges alone, doubling up with crude fertility awareness and/or calendar method is within my risk tolerance -- and if PMS (assuming it is PMS, etc.) would normally suggest that the ova's disintegrated like a teeny-tiny armed and operational Death Star...
And I have little idea what keywords to use to google on it. O:/ (My first attempt seems to verify my assumption, but vaguely enough that I'd like to tap into the VP decentralized data source. O:> )