Op, I am sorry for your loss. The other ladies said it best.
Those of you who came in here and did NOTHING but berate her for not properly tracking her cycles, which you don't KNOW she isn't doing "correctly" need to shut.up.
It's painfully obvious that you are new and trying desperately to seem as though you fit in and have tons of knowledge to share. Your desire to do both of these things is normal.
HOWEVER, parroting what you've heard here with blatant disregard to the rest of the post (do not berate someone who talks about loss in her first post. Welcome her, offer sympathy for her loss, and correct her in another post if it comes up again) is NOT the way to make yourself "popular".
Step back, continue to lurk and leave the education to those who have the sense to read.