To tell people how many months you are don't include the first two weeks of your pregnancy (before you've actually ovulated) to calculate your months. It makes it a lot easier. Someone who is 14 weeks would be three months (12 weeks). Someone who is 26 weeks is 6 months (24 weeks).
Herein, which months have 5 weeks in 2018?
5-day Combos in the Same Month
|On dates:||1 / 8 / 15 / 22 / 29||3 / 10 / 17 / 24 / 31|
|October 2018||5 Mondays||5 Wednesdays|
|December 2018||5 Saturdays||5 Mondays|
|January 2019||5 Tuesdays||5 Thursdays|
|March 2019||5 Fridays||5 Sundays|
Are there four weeks in a month?
Some months are longer than 4 weeks, because 4 weeks is 28 days and some months are longer than 28 days. The rest of the argument does not work because it relies on the false hypothesis of every month being 4 weeks long. Each month is a little bit longer than 4 weeks (except for February in non-leap years).