Gestational Age

During pregnancy, the gestational age is the period between the woman's last menstrual period (LMP) to the current day. The gestational period of a healthy pregnancy in humans is from 38 to 42 weeks.

Recently Answered Questions Recently Answered Questions

All the answers published in this website are written by Verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

Can an ultrasound be wrong in calculating gestational age?

Query: Hello doctor, How accurate are early ultrasounds at determining gestational age and conception? Based on my 6th-week scan I am 23 weeks today means I conceived around December 25th. Is it possible that I actually conceived around December 5th and baby is measuring small? (I have had six ultrasounds...  Read Full »

Dr. Ushasi Mukherjee

Obstetrician And Gynaecologist

Answer: Hello, Welcome to The first-trimester ultrasound scans done before 12 weeks are the most accurate ones in the assessment of gestational age with an error of only + /- 5 to 7 days in the assessment of gestational age. So they are used for obstetric dating and determination of expected...  Read Full »

Are vomiting and diarrhea side effects of Anmum Materna milk?

Query: Good day Doctors. I'm 22yo. My last period was on 18th to 21st last month. I just took 2 pregnancy test this 26th and it's positive. First baby. I bought anmum materna Q+ milk after i knew I'm pregnant but I'm having diarrhea and i vomit more than usual. Since it's still ECQ, i can't go out to hav...  Read Full »

Dr. Lorena Zijaj

Obstetrician And Gynaecologist

Answer: Hello, Welcome to i cliniq , Congrats for your pregnancy So LMP of yours is 18th last month so you are 7 weeks +5 days .You have to perform a ulrtasound to evaluate the embryo and heart activity . Second vomiting is one of the most commen symptom of pregnancy that may accompany you still at 12 week...  Read Full »

Why is my gestational age a week more than my last menstrual period?

Query: Hi, My last periods was 4 weeks 5 days back, and I discovered that I am pregnant when I checked using the home test. However when we went for a scan today the doc says the sac measures 1.75 cms and it is 5 weeks 5 days. Why is there a difference of one week when from last period which is 4 weeks 5 ...  Read Full »

Dr. Sravanthi Nuthalapati

Obstetrician And Gynaecologist

Answer: Hello Momo, Welcome to Icliniq. There is nothing to be worried about in this calculation as it's just the machine readings. you can just follow your actual dates for gestational age calculations. As per your dates your gestational age is 4wks 5days. You mentioned that Gestational sac diameter is 1...  Read Full »

Why is my gestation age different from last menstrual period?

Query: Hello doctor, I am 27 years old and pregnant. My last period was two months back but the baby only shows six weeks and three days gestation as of today with a heart rate of 77. I have a picture of my ultrasound from today and I was hoping you could explain what it was showing.  Read Full »

Dr. Eeshani Dutta

Obstetrician And Gynaecologist

Answer: Hi, Welcome to For a lady, with regular periods previously, generally ovulation occurs around 14th day of the cycle, so fertilization can take place only after that. In your case (if your periods are regular), you ovulated around 22nd two months back and fertilization took place only ...  Read Full »

What does both kidney slightly hyperechoic in a fetal ultrasound indicate?

Query: Hello doctor, What does both kidney slightly hyperechoic in an ultrasound indicate? I am 19 weeks pregnant and very worried about my baby.  Read Full »

Dr. Eeshani Dutta

Obstetrician And Gynaecologist

Answer: Hi, Welcome to Hyperechogenicity in kidneys is seen in some congenital polycystic renal diseases leading to renal failure in late childhood or adulthood. But in fetuses, this marker has been studied sparsely. These studies have shown that if the amniotic fluid around the baby is adequ...  Read Full »

How to calculate the gestational age accurately?

Query: Hi doctor, My CRL is 5.18 cm. How old is my baby now? How can I get my gestational age accurately?  Read Full »

Dr. Chitrangada

Radiodiagnosis Physician, Radiologist

Answer: Hi, Welcome to The CRL of 5.18 cm corresponds to 11 to 12 weeks of gestation. A difference of two to three days is possible depending on the position of the baby and the measurement of the caliper placement. Ideally, we recommend a first scan to know the exact dating and to calculate ...  Read Full »

The girl I am going to marry is 33. Is it alright to wait for two years to plan a baby?

Query: Hi doctor, I am 31 and I am going to marry a girl who is 33 years (two years elder to me). If we do not want to plan for a baby for one or two years after we get married, will she face any problems during pregnancy as she will be above 35 years? Also, will the baby have any problems growing up...  Read Full »

Dr. Megha Tuli Gupta

Obstetrician And Gynaecologist

Answer: Hello, Welcome to I went through your query and understand your anxiety. Actually, the chances of conception and having a healthy pregnancy decrease after the age of 30. After 35, the risk of having babies with Down's syndrome increases significantly. So it is best advised medic...  Read Full »

I am 42. Can I conceive twins without any risks?

Query: Hi doctor,I am a 42 year old woman. Can I still conceive? Also, can I conceive twins without any risks?  Read Full »

Dr. R Balakrishnan Menon

Infertility Specialist, Obstetrician And Gynaecologist

Answer: Hello, Welcome to How are you doing? As per your history, the only risk factor is your age. Let me explain, if I may. Every lady is born with a fixed number of eggs in her ovaries. As her age advances, every month she keeps ovulating out or expelling these eggs. The healthiest ones are ...  Read Full »

Which of my twins have a better chance of surviving?

Query: Hello doctor, I have recently delivered twins, both weighing 2.2 kg. One of them was preterm and the other had IUGR. Now, I am concerned. Which of them have a better chance to survive?  Read Full »

Dr. R Balakrishnan Menon

Infertility Specialist, Obstetrician And Gynaecologist

Answer: Hello, Welcome to How are you doing? I feel the preterm baby has a better chance. Both the babies are of the same age and weight. If only one baby has IUGR (intrauterine growth restriction), then it should be having some anomaly, organ problem or selective problem in some blood vessels ...  Read Full »

There is no ovulation in spite of raising the dosage of Clomid. What to do?

Query: Hello doctor, I have been taking Clomid since early this year. I started with 50 mg and there was no ovulation. So, then I took 100 mg and again no ovulation. Now, I am on 150 mg and according to the OPK, I ovulated on the 17th. I know this sounds crazy, but I feel different. I have a pulling pain ...  Read Full »

Dr. R Balakrishnan Menon

Infertility Specialist, Obstetrician And Gynaecologist

Answer: Hello, Welcome to How are you doing? As you mentioned, it is too early to diagnose pregnancy even in the blood. Had you ovulated on the 17th as you say, it would have reached the tube on that day. Let us say, the sperm too had reached at the same time and formed an embryo, it would stay...  Read Full »

ask-doctor-img Ask a Doctor Online

* guaranteed answer within 4 hours
Chat with a Doctor

Chat with a Doctor

Starting @ just $29.99

Search for a Health Issue


Disclaimer: All health Q&As published on this website are not intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek the advice from your physician or other qualified health-care providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website.