this is my first post and i really appreciate any advice, answers, stories, etc. i went to the ER last night because i had been experiencing some abdominal cramping over the last few days and just wanted to put my mind at ease that everything would be okay. we have been trying to conceive and i was just recently diagnosed with endometriosis. we had just discovered that we were pregnant and could not believe it and were so ecstatic! we were also shocked because i had a normal period on schedule (27 day cycle) on dec 3 and it lasted as normal 4 days. our conception date would have been around 11/17-11/22. i really don't necessarily understand how you calculate how far along you are based on that, but the math never seems to add up when i read how far i am along vs when we conceived. so, any help on that is appreciated. i was given two internal vaginal ultrasounds and was told that there was nothing showing at all, no sac, nothing. but, that it could be normal if i am very early in pregnancy. they did a beta blood test and then told me that my hcg level was 83. i wasn't sure if that was unheard of, but knew that it was not in the "normal" range. the dr that perfomed the 2nd ultrasound told me that i could not have conceived on the date i gave her. i told her that i did conceive on that date and we had not had intercourse since then. but, she told me that she would at least be able to see the sac and that my hcg levels were not high enough. so, she gave me no answer as to what was going on, but i was sent home with a pamphlet on miscarriage. i am distraught right now because i am in this state of not knowing what to do or what is going on. i went to my obgyn today and they took another beta test and we should have the results tomorrow, but i am just wondering if anyone has every had their hcg this low at this stage in pregnancy and if it is most likely a miscarriage. your responses are appreciated!!