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A member asked:

My lmp was nov 4, 2015. i just did a tss showing 7wks, 6days instead of 14wks. fhb is 169 and everything else appears normal. why are the dates weird?

2 doctors weighed in across 2 answers
Dr. Euton Laing answered

Specializes in Family Medicine

Pregnancy dating: Not clear when you got pregnant, you could have missed a period without being pregnant. Follow up with your OB and they will do another US later in pregnancy, that will confirm the age of the pregnancy.

Answered 2/13/2016

1.6k views

Thank

Crown rump length: Fetal crown-rump-length determined by transvaginal ultrasound is very reliable in determining the gestational age. Gestational age determined by TVS trumps gestational age by last menstrual period.

Answered 2/14/2016

1.6k views

Thank

Related Questions

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What does it mean if your baby measures 3 days ahead? Due date of Nov 6 changed to Nov 3. LMP 1/31/2016 sex on Feb 10 & 11 2016

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LMP Feb 19,2018. Cycles 28-30 days. Due date approximately Nov 26. Concieved around March 5. Some apps say I'm 7 weeks 5days, others say 8 weeks 5 days. What is it?

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A member asked:

I had an ultrasound at 8 weeks 4 days Nov 14th, with a due date of june 22nd. My LMP was September 19th.. which date is accurate ultrasound or LMP?

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A member asked:

If my LMP was nov 28 and I had sex afterwards and spotted dec7-9 and had sex again 10-13 could I have conceived 10-13 or b4 and have a due date sept15?

A doctor has provided 1 answer

A member asked:

My LMP was on the nov 18 2009 i had sex with my boyfriend on the 23rd an then my bestfriend the 28th my due date was on aug 25th 2010 whos the father ?

A doctor has provided 1 answer

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