I had a ultrasound 2 days ago and it said I was six weeks instead of ten weeks as I originally thought. I have irregular periods. How accurate is this result?

QUESTION

Dear Ms Ultrasound,
Hello again. I wrote to you a couple of weeks ago and you responded. I have attached that correspondence. I have some serious concerns regarding a follow-up u/s in which the radiologist found "Several indicators are of non-viable pregnancy or impending non-viability." I will attach a scanned copy of the report, but my concerns are:

1. Report says "Mean sac diameter corresponds to 5 weeks, 5 days gestation"

QUESTION

Dear Ms Ultrasound,
I was wondering if you could help me. About a year and a half ago my girl friend and I were going through a break and I had a sexual liaison with an other girl. I call it that because I tried to have sex with her but couldn't maintain an erection; it lasted for about a minute and I stopped I did not ejaculate.

QUESTION

Dear Ms. Ultrasound,
I'm a pretty small person, I normally only weight about 110lbs and when I went in and had my first Ultrasound test done I was told was 24 weeks pregnant. Now this is odd to me as I'm very small and I'm not showing as much as I would think I would be at that stage of pregnancy. I was also told that I'm 56mm and I haven't the slightest idea of what that means and no one really explained anything to me at all.