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NO!!!! There are 4 weeks and 2 or 3 days in a month (except February)! don't fall victim to this inaccurate estimate! If there were 4 weeks in a month you would be pregnant for 10 months. 4.4 weeks in a month is more accurate (divide 40 weeks by 9 months). So you are actually just over 6 and a half months at 29 weeks. Since it has been a week since you posted this you are just over 6 and 3/4 months.
Ambiepamie75 is right. There are 4 weeks (28 days) in one month. Pregnancy lasts approximately 40 weeks (10 months). Your due date is determined from the date of the first day of your last period and you don't conceive until during the second week or so while you're ovulating. Also many women give birth before their due date and never make it to the end of 40 weeks.