# How Many Weeks Is a Pregnancy –Let’s Calculating the Periods of Pregnancy

Pregnancy is a complicated matter, and determining how many weeks is a pregnancy can be confusing too. There is a misconception of the people related to the pregnancy length, especially for those who haven’t undergone the stage. Most people think that pregnancy is determined by months, so the nine months basic has become their guide. In reality, pregnancy is determined by weeks, and it can go for maximum 42 weeks. There are reasons why such a thing is based on the weekly calculation instead of the monthly one. Dwell further on knowing the facts.

## The Pregnancy Length

The common belief is the pregnancy is measured in months, while in reality, it can be done in weeks, days, and also trimesters. Why isn’t it based on the monthly basis? You need to remember that the months aren’t always consisting of four weeks arrangements – some months even have five or four and a half weeks. Calculating the 1st trimester or the 2nd trimester, for instance, is also more comfortable if it is based on the weekly basis.

So, how many weeks is a pregnancy? When it is based on the trimester calculation, the first trimester will be likely from week 1 to week 13. When it is broken down further, it would be week 1 to 4 is month 1, week 5 to 8 is month 2, and week 9 to 13 is month 3. Whereas the first trimester is week 1 to week 13, the second trimester is week 14 to week 27. The third trimester weeks will last from week 27 to the delivery date which can range from around 37 weeks to 42 weeks.

Some people think that 40 weeks is the maximum week – it has reached the late period. But that’s not true. The new week is 42 weeks, and if this is the case for your condition, your last month period of pregnancy can last for seven weeks! Here is a rare occurrence, though, because not many moms would have to undergo 42 weeks being pregnant. According to some health experts, when pregnancy has reached 38 weeks, it is considered the ideal time for delivery. The period is considered mature and ready enough, without having to go through the late period.

## Calculating the Periods of Pregnancy

Not many people know or understand the correct ways to calculate the pregnancy. A lot of people are still confused about the fact or idea about how many weeks is a pregnancy that should be calculated and addressed. And as if it weren’t complicated enough, there is still the matter of full-term pregnancy and such thing alike.

Well, full-term pregnancy is the period where your pregnancy is going through – from the first week to the delivery date. In the past, 40 weeks were considered the average full-term period although it is very common to deliver the baby earlier – or even later. The paradigm then switches into 37 weeks considered as the full term pregnancy. However, this was considered not very much ideal either because not all 37 weeks pregnancy refers to the condition of ready labor or even scheduled cesarean procedure. The 37 weeks delivery is still considered risky, still having some of the biggest challenges and problems.

For now, the decision about how many weeks is a pregnancy and the full term pregnancy is divided into several stages:

• The early term refers to 37 weeks and 38 weeks and 6 days
• The full term refers to 39 weeks and 40 weeks and 6 days
• The late-term refers to 41 weeks and 6 days
• Post-term refers to any condition that goes beyond the 42 weeks. This is a rare case, but such a thing is possible.

There is also a misconception where people would differentiate the normal pregnancy with twins. Most of them think that twins with 37 weeks have the full term pregnancy. This claim, however, isn’t valid. No matter what (whether you are having twins or triplets or regular), the full term condition is 39 weeks. But let’s not forget that your body will react and respond differently to each condition. Even with the 39 weeks of full-term pregnancy, there is a possibility to deliver earlier. If you are providing twins in your 37 weeks period, it is quite excellent and ideal.