hi... im a first timer and was wondering if someone could answer a nerve racking question for me? my cycles run between 29-32 days. i was due for my period around dec. 28 and the 31st. today is the first and no period. december 28 i went to my doctor who did an ultrasound to make sure there were no cysts. i had some aching around my ovaries and what felt like stretchy pains. in my uterus was a little tiny black circle. he said my endometrium lining was starting to thicken so i was either getting ready to start or in the beginning of pregnancy. i have taken two pregnancy tests which have came back negative. i had light spotting only when i wiped starting on the 28th that lasted only two days. then nothing. i had implantation bleeding with my son so could that be what that was and im mistaken it? could i have a late implanter and not 8-| 8-| enough hormone to dectect pregnancy? i was told to wait another week before testing again but didnt know if anyone was experiencing the same thing and ended up pregnant after all. im very confused. the black dot on my uterus looked like the start of a sac. please any advice or opinions would help. thanks so much! :-) good luck to everyone else ttc!