Be Informed! ~ Videos ~ MC Magazine ~ Conception ~ Pregnancy ~ Infants ~ Toddlers ~ More...
Get Connected! ~ Bulletin Boards


Get Connected!
Bulletin Boards

Be Informed!
Post Partum
Baby's First Year
Older Children

Subscribe to our free
Email Newsletters!

Articles, information, special offers, contests and more!
Your name and e-mail will not be given or sold to anyone and you can unsubscribe at any time.

News - our periodic newsletter with articles, contests, announcements and more!
Pregnancy - Special newsletters to see you through your pregnancy!
- Special newsletters to see you through baby's first years!

View Sample Newsletters


Find it!

Web maternitycorner



Months? Lunar months? Weeks? Days? Trimesters?
How far along am I anyway?

If you are confused, you're not alone. While most people talk about pregnancy being 9 months long (divided into three trimesters), most health care providers refer to a pregnancy as being 40 weeks long, starting with your last known menstrual period. You might like to know that this is also equal to 280 days, or 10 Lunar Months. Phew!

OK, so when is my due date?

The traditional way to calculate a due date is to add 9 months from the first day of the LNMP (last normal menstrual period) and then add seven days.

For example:
1.Your LNMP was Feb 1
2.Add nine months, bringing you to November 1.
3.Add seven days, bringing you to your due date of November 8
4.Thus, your due date becomes November 8!

Some people prefer to do it this way:
1. Your LNMP was Feb 1
2. Add 1 day
3. On your calendar, count forward 40 weeks to determine your due date. Making matters even worse, many women do not have typical 28-day cycles. Practitioners may adjust the EDD to reflect the shorter or longer cycle length.

Remember, calculation of your due date is certainly not precise (after all, women get pregnant in all the months of the calendar, some of which have 28, 29, 30 and 31 days!). Also, all women do not have a 'typical' 28 day cycle! This is why your due date is usually referred to as your EDD or Estimated Due Date! Use our Due Date Calculator to estimate your due date.

As if it wasn't already hard enough, some women may be unable to recall their LNMP or may have very irregular or infrequent cycles. When you visit your care provider, try to give as close an estimate as possible. The closer the estimate, the less likely both you and your practitioner will worry or experience stress if your baby does not come on the EDD. Only about five percent of expecting moms deliver on their EDD anyway!

An experienced practitioner may also rely on physical clues to determine the baby's due date. Most of these clues are most evident within the first two months of pregnancy. They include:

Examination of uterine size
Identification of audible fetal heart tones by doppler
Ultrasound examination prior to 26 weeks from LNMP

This all sounds fine, but if you calculate the due date from LNMP, aren't you counting weeks before conception?

Although it may be confusing at first, health care providers begin counting the pregnancy from day one of the LNMP. Yes, before you even conceived!

Measured as nine months on the calendar -- starting one week after your LNMP.

Three periods of three months each. Months 1 - 3 are the first trimester, months 4 - 6 are the second trimester, and months 7 - 9 are the third trimester.

Lunar Months
Prenatal development is often measured in lunar months. Each lunar month consists of 28 days, organized into four weeks of seven days each. That means a pregnancy is 10 lunar months long!

40 weeks from the start of your LNMP. Gestation is 38 weeks from conception to birth.

280 days from your LNMP. No matter what method is used to determine EDD.

No matter how you measure your pregnancy, even the best estimated due date can be inaccurate. Your baby will be born when he or she is ready!

Talk to other Mom's-to-be!


Week 1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10

Week 11
Week 12
Week 13
Week 14
Week 15
Week 16
Week 17
Week 18
Week 19
Week 20

Week 31
Week 32
Week 33
Week 34
Week 35
Week 36
Week 37
Week 38
Week 39
Week 40

Calendar Index
Due Date Calculator





We are committed to providing you with a pleasant on-line experience. is asafe places for your personal information
All articles on this site are for informational purposes only.
Please consult your doctor or health care provider regarding any health concerns.

About Us ~ Online Magazine ~ Videos