I am 5 weeks pregnant, my LMP was June 30th. No Bleeding or spotting has occured, thankfully. Here's my worry..I went into the ER lastnight around 10pm becuase I started cramping REALLLY bad around 4 along with a bad headache and backache to follow. Yet, no spotting or bleeding thankfully. SO the Dr took some blood, urine, and did a sonogram. She came back and said that she couldnt find the baby on the sono and the urine was negetive, but the blood said I could be. My hgc was 38, the endometrium measured 8mm, and my uterus measured 6cm in length x 2.7cm AP diameter. So Im very confused, because i've taken 6 at home tests ( all positive) and went to a womans clinic yesterday and it was a confirmed pregnancy. Took another test this morning and its still a positive, so idk.. Does this happen very often? Should I be worried or not?