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Share How many months am I? The equivalence between weeks and months of pregnancy

Lola Rovati @Lolarovati

The pregnancy is counted in weeks, the total duration of pregnancy is 40 weeks, but it is still common to hear people talk about months of pregnancy and as in reality the pregnancy does not last exactly nine months, that's when the confusion arises.

Six months of pregnancy how many weeks are? If I am 35 weeks, how many months am I? We will help you clarify this common question about the equivalence between weeks and months of pregnancy .

How long the pregnancy lasts

The approximate duration of the pregnancy is 280 days of gestation, more than nine months (ten lunar months), or what is the same, 38 weeks from the moment of fertilization of the ovule and 40 weeks from the date of the last menstruation ( FUM) .

If we start counting the weeks since the last menstruation, week 1 of pregnancy will come the rule and, if you have regular cycles of 28 days, the fertilization of the ovum will occur in week 3.

In week 4 implantation occurs, which would be just when the rule should return (which will not come if you have become pregnant), or there will be a slight bleeding known as implantation bleeding. These first four weeks would correspond to the first month of pregnancy .

Between week 5 and week 6, upon noticing a delay, you will perform a pregnancy test and you will discover that you are pregnant. !! Congratulations!!

How many months am I?

In fact, a month does not last exactly four weeks, except February, the only month of 28 days. The others last 30 or 31 days, about four weeks and two or three days on average .

If we calculate each month of four weeks, the pregnancy would end in week 36 when in reality the duration is 40 weeks, therefore to have a unified criteria could divide the months and trimesters of pregnancy, as follows:

First Trimester of pregnancy

  • First month of pregnancy : from week 1 to week 4
  • Second month of pregnancy : from week 5 to week 8
  • Third month of pregnancy : from week 9 to week 13

Second Trimester of pregnancy

  • Fourth month of pregnancy : from week 14 to week 17
  • Fifth month of pregnancy : from week 18 to week 22
  • Sixth month of pregnancy : from week 23 to week 27

Third trimester of pregnancy

  • Seventh month of pregnancy : from week 28 to week 31
  • Eighth month of pregnancy : from week 32 to week 35
  • Ninth month of pregnancy : from week 36 to week 40

Your pregnancy week by week

If you want to know how your pregnancy evolves and how your baby grows week by week, consult this complete guide to conception at birth: from week 1 to 40 of gestation.

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