Fetal development by gestational age

Common Questions and Answers about Fetal development by gestational age

fetal-development

The ultrasound date is probably right, since they go by size and stage of fetal development, so trust that. But keep in mind, your due date will probably change a lot, so this time it is not set in stone!
You may never know when you ovulated - it will probably only be a guess at most even when given a gestational age. But I think this certainly gives much hope to many women who have recently had a m/c and are hoping to fall pg almost immediately! Well done!
We conceived again on July 22nd and today my wife went in for her first ultrasound and at what should be ten weeks our baby's heartbeat showed to only be at 7 weeks development. I'm afraid the details are sketchy at best, as I was told by my wife over the phone. There is no confusion about the conception date, as she knew pretty much right away - amazing how that happens, isn't it? - and we weren't in the same city in the weeks that followed due to her work obligations.
I have been diagnosed with gestational diabetes. I have recently found out that my doctor wants to induce me at 37 weeks. I am 35 weeks currently. I was told this one week ago. I was devestated. I really want my baby to come naturally, whenever she is ready. My blood sugar is under control. I do take a 2.5 mg Glyburide pill once a day and receive fetal monitoring twice a week. My blood sugars and fetal monitoring have all came out fine.
At a conference of perinatalogist attended by my perinatalogist, he said that most cases of extreme sizes in gestational sac, whether too small or too large for the gestational age, the fetus has a weak heartrate (which mine did not) and will end in miscarriage. There is no known cause for the sac sizes that they have been able to pinpoint as of yet. Again, if I find out anything that may be useful at my appointment tomorrow I will be sure to pass it along.
However, ultrasounds are most accurate in the first trimester or right after the baby has a fetal pole. Because later on, the baby curls up and they are have judge by the fetal development. Maybe the baby happens to develop faster than average. If your wife said her last menstrual period was 3/5, then it's not possible for her to be optimally fertile between 2/19 ~ 3/5, unless she got her dates wrong.
I am reading an excellent book about fetal development written by a specialist in the field of fetal photography. This book said that on ultrasound, the fetus will date from time of conception. For example, if a woman is 5 wks, her baby will show 3 wks on u/s. This correlates precisely with your case. Nurses are often not as trained in this area. Many doctors are not as well since they have had very little u/s training.
it was awful emotionally and i so hope you don't have to go through that. many woman are given a wrong due date and gestational age because the docs go by LMP....lets hope they made this mistake with you. you are in my thoughts and prayers. love and hugs.....
Normally a gestational sac with a yolk sac appears at about 5 weeks (calculated from your last missed period date) of pregnancy and can be well visualized by 6 weeks on a transvaginal (through a vagina) ultrasound (so it can be missed at 5 weeks), when you can see a fetal pole too. Fetal heart beat usually appears by 8-9 weeks. This is why it is best to repeat the scan a week or two later. At times the sac appears but there is no baby inside. This is called blighted ovum.
I had my first US yesterday. According to my LMP, I am 7 weeks, 3 days. The ultrasound measurements indicate an age of 5.5 weeks to 6 weeks of age. The doctor was concerned by this, and by a "low heart rate". Although a bit hard to see, we could see the baby's heart motion as it was beating, however they did not pick up heart tones and did not estimate a heart rate. The yolk sac was there, and the gestational sac looked "a little crinkly" according to the doc.
I guess my question is does anyone know at what gestational age the fetal pole should be apparent? I can't really find anything on the internet that specifically addresses this. Everything I have read says that the heartbeats may not be detectable until 8 weeks, but I can't find anything concrete on the fetal pole development.
Her uterus is a full 4 weeks larger than the gestational age would indicate. We just met with a Maternal Fetal Medicine Expert yesterday. A sophisticated ultrasound was conducted and the following is a summary of the information we received. Please keep in mind that I am a lay person and nervous father to be. If you haven't already I highly recommend visiting your OB/Gyn. Via her 20 week ultrasound, it was determined that there is a build-up of excess amniotic fluid.
The ultrasound measured the pregnancy at 5 weeks 6 days +/- 2 (my guess was 6 weeks 1 day so it seems within range). The nurse saw a yolk sac and fetal pole with a heartbeat of 96 beats per minute. She said they like to see 120. She also pointed out an area of bleeding in the uterus below the gestational sac and said it may or may not be an issue. I have no spotting.
Week 6 Gestational Age (Fetal age 4 weeks) 5 ½ to 6 ½ weeks is usually a very good time to detect either a fetal pole or even a fetal heart beat by vaginal ultrasound. The fetal pole is the first visible sign of a developing embryo. This pole structure actually has some curve to it with the embryo’s head at one end and what looks like a tail at the other end. The fetal pole now allows for crown to rump measurements (CRL) to be taken, so that pregnancy dating can be a bit more accurate.
I had my first ultrasound (with the vaginal wand) and they estimated me to be at 5 weeks 6 days. I did in vitro. They confirmed the presence of a gestational sac, yolk sac and fetal dipole, but could not detect a heartbeat. Is 6 weeks or less too soon to see this? They counted 6 weeks back from the first day of my lmp, but they thought I might be running a little small. I am worried that something is wrong!
From 6 weeks to 9 1/2 weeks gestational age, the fetal CRL grows at a rate of about 1 mm per day. Gestational Age (Weeks) Sac Size (mm) CRL (mm) 4 3 5 6 6 14 7 27 8 8 29 15 9 33 21 10 31 11 41 12 51 13 71 Determination of Gestational Age Measurement of the gestational sac diameter or the length of the fetal pole (CRL) can be used to determine gestational age.
I do lots of reading when I'm bored..and I came across this. It's just something to keep in mind when you go in..so you'll know what to pay attention to. Week 6 - Gestational Age (Fetal age 4 weeks) 5 ½ to 6 ½ weeks is usually a very good time to detect either a fetal pole or even a fetal heart beat by vaginal ultrasound. The fetal pole is the first visible sign of a developing embryo.
I WENT IN A THIRD TIME ( TWO WEEKS LATER) FOR A FOLLW UP ULTRASOUND AND THEY SAID THEY SHOULD'VE SEEN MORE DEVELOPMENT BY NOW. TOOK MY BLOOD AGAIN AND THE HCG LEVEL WAS ONLY 27000. I HAVE ANOTHER APPT. COMING UP BUT WHAT DO YOU THINK? I NEVER HAD ANY TESTS OR ULTRASOUNDS WITH MY FIRST PREGNANCY. COULD THIS BE NORMAL FOR ME? SHOULD I EXPECT BAD NEWS AT MY NEXT APPT? I HAVE HAD NO CRAMPING OR BLEEDING AT ALL AND I HAVE MANY EARLY PREGNANCY SYMPTOMS. HELP!
So if you are 24 weeks pregnant, that is your gestational age, but your fetal age is 22 weeks. In that case, it has been approximately six months since the first day of your last menstrual cycle, but only about 5½ months since you conceived.
Specifically, it refers to a fetus whose weight is below the 10th percentile for its gestational age. Symptoms Currently pregnant with a feeling that the baby is not as big as it should be Uterine fundal height less than expected for gestational age Treatment IUGR increases the risk for intrauterine death.
The sperm fertilizes the egg. The sperm and egg each carries half of the normal amount of genetic material (DNA.) After fertilization, the egg now has a full set of genes that is unique. Day 6: The embryo, which has been floating free, comes to rest on the lining of the uterus, and burrows in. The embryo is now a round mass of cells, with an empty space in the middle. Week 2: The embryo now receives nutrients from the rich blood supply to the uterus.
Usually the 5th week you will see the gestational sac but maybe no fetal pole. By week 6-7 you should see the fetal pole and if you're lucky a heartbeat. By week 8 you should get a heartbeat. So if you are only 5 weeks it sounds like your development is very good seeing both a fetal pole and hb. Did he mention what the heartrate was?? I am not sure what the "likely" fetal pole means because if there is a heartbeat then there is definitely a fetal pole there!!
I am 34 years old and still pregnant with my first childChild neglect and psychological abuse Child safety seats School age child development. My LMP was on 9/28/2007.
to ensure baby's heart beat, (since it's too early for a doppler), and to confirm gestational age. Based on the growth and development it will determine if your due date is correct. Hope this helps.
about 6 weeks+, my doctor able to see the gestation sac, fetal pole, and heartbeat. 5 weeks is too early to see anything... I got scare each day.. when my tummy cramp.. I got scare..when i have sharp pain. i got scare... even when i go pee.. I am scare to see blood so i always look down when i pee. I am 13 weeks 4 days today and still scare every moment.. i think i am going to have heart attack soon if i am keep scaring like this... :-) Your will be fine... Congrats and good luck to you.
They are having my come back in 2 weeks to just check the baby (she said we should be able to see a fetal pole by then) and to check on my cyst. Just kind of worried about these things but don't know if I should be especially since my hcg levels are rising. Am I overthinking all this?
Lastly, the dr has not told me anything about the size, progesterone or anything else. I'm not even really sure how far along I am – gestational vs fetal age thing is confusing I never know what ppl are referring to. Thoughts on how far along I might actually be here would be helpful. I live in a major metro area and am seeing the head of the dept, but the baby's daddy thinks the dr is busy and a D&C is just an easy call and lets him bill some OR hours... I dont want to be that cynical.
1 weeks, while this baby was perfect and looked perfect for that gestational age, minus a beating heart. Tomorrow will tell all. If my numbers drop, we'll know. If they double and go up, the baby should have a heartbeat and be viable after all. I have been in a deep depression for two straight days. I haven't slept a wink... This gives me so much hope. This is also my last baby and we planned it for over a year.
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