Best Answer

Hello. I would go with the date the ultrasound gave you but ultrasound dates can be off by a few to 7 days. Both of them are right. You probably conceived somewhere between the two. Most women ovulate 14 days BEFORE the missed period, as you have a short cycle this would mean 10 days after your LMP which would account for 4 of the 7 days, and even early ultrasounds are only accurate to within 3 days. The exact date would only be important if there had been two different men, and even then you would need a paternity test as it would be impossible to tell with such close dates.

User Avatar

Wiki User

βˆ™ 2006-07-17 06:59:36
This answer is:
User Avatar

Your Answer


Related Questions

Could you still get your period a week after you conceived?

Generally, no. Pregnant women do not have menstrual cycles.

Your doctor says that an us is more accurate than lmp because a lot of woman don't remember their lmp and that you could ovulate at different times how true is this?

Women have cycles that are not all the same length but most women ovulate 14 days before a period is due. That is what makes the difference. At 7 weeks ultrasounds are accurate to within 3 days. At 20 weeks they are accurate within 5 days When I had my first pregnancy my cycle was 36 days which would mean my EDD would be 8 days early if my LMP was used, my US agreed with my cycle not my LMP. When I had my second pregnancy my cycle was 28 days and my ultrasound agreed with my LMP. So you are saying that the ultrasound is more accurate? Yes, the ultrasound is more accurate. I did go round the houses a bit to say it.

How accurate is The Clock?

Electric clocks that plug in the wall (not battery operated) are probably the most accurate timepieces you can buy. These clocks count the cycles of alternating current. This make it a digital like clock and the electric company adds or subtracts cycles every so often to make it exactly accurate.

You are 7 weeks pregnant and you have irregular menstrual cycles can you tell when you got pregnant?

An ultrasound would be the best way for you to determine how far along the pregnancy is.

How do different support different organisms?

by using different cycles each organism needs

How are mammals life cycles similar and different?


Explain the different cycles of rock formation?

This is not a question.

How are stars different colors?

At different stages in their life cycles they have different temperatures and radiate different visible wavelengths.

Why do different animals have different life cycles?

because all animals get eaten alot

What kind of sound waves does ultrasound include?

includes all sound waves above the frequency of human hearing--about 20 thousand hertz, or cycles per second. Medical ultrasound generally uses frequencies between one and 10 megahertz (1-10 MHz).

Describe some different cycles in nature?

amazing, beautifully,

Which cycle provides oxygen?

There are actually quite a few different cycles that will produce oxygen. Photosynthesis in plants is just one of these cycles.

Do all butterflies have the same life cycle?

no different types of butterflies have different life cycles

Why Air Standard Cycles are conceived?

Air standard cycles are conceived to permit thermodynamic calculations using the well-known and readily available thermodynamic properties of air. The results of such calculations may be used to predict compression ratio, specific heat ratio, and other operating parameters effects on thermal efficiency of a number of heat engines such as the Otto Cycle Heat Engine , the Diesel Cycle Heat Engine, and the Brayton Cycle Heat Engine.

Which of the cycles matter through different parts of an ecosystem?

carbon cycle

Which describe the cycles in nature?

each cycle is connected In different ways

How are life cycle of animals alike?

Life cycles of higher animals are alike, as they are diploid and reproduce sexually ,but there are different types of life cycles in lower animals .

Explain the roll of the 3 or more different cycles within Pennsylvania?

get this question for me

What term includes all the different stages animal life cycles?


Is the glycolysis cycle another name of the Krebs cycle?

No. They are two different cycles.

One menstrual cycle usually last how long?

The average menstrual cycles lasts 28 days - but different women may experience different menstrual cycle lengths, and cycles can change throughout a woman's life.

What are 5 types of cycles ex life cycle water cycle etc?

water cycles life cycles human cycles rock cycles butterfly cycles energy cycles

How many clock cycles does the CPU require to act on a command?

It depends on the processor. They often have a different number of Cycles per Instruction. (

What environments will water cycles encounter at different stages of travel?

Different environments are encountered. It involves all spheres of biosphere.

What are the life cycles of endangered plants and animals?

Each plant or animal has it's very own life cycle. To learn the life cycles of endangered plants and animals, one would have to research each plant or animal individually in order to receive and accurate answer.