I think its looking really good Elocin, nice big spike this morning, and also the total opposite of what happened on your last ovulatory cycle where your temp dropped. So yup, i reckon it was an implantation dip, and you are experiencing implantation cramps at the moment. And on the hair thing, I've always lost heaps of hair, but when i got pg, i started losing twice as much, and it drove DH mad as my hair was literally all over the house!

Got all my fingers and toes crossed for you hun