Pregnancy Calculator

How does this calculator work?

The form below calculates the conception date and due date based in the first day of last menstrual period. The calculated values are converted to date again after the calculation.

How to calculate weeks of pregnancy

To calculate weeks of pregnancy, you can start by determining the first day of your last menstrual period (LMP) and counting the number of weeks since that date. Alternatively, you can use an online pregnancy calculator that takes into account the date of your LMP and the length of your menstrual cycle. Another way to estimate the weeks of pregnancy is by ultrasound measurements taken during prenatal appointments, which can also help determine the due date. It’s important to note that these calculations are estimates, and your healthcare provider may adjust them based on other factors.

When can I take a pregnancy test calculator?

You can take a pregnancy test calculator around one week after a missed period, or about two weeks after conception. This is when the levels of the pregnancy hormone human chorionic gonadotropin (hCG) start to increase in the body, which can be detected by a pregnancy test. However, some pregnancy tests claim to be able to detect hCG levels earlier than this, such as a few days before a missed period. Keep in mind that the accuracy of the test result will depend on factors such as the brand of the test, the timing of the test, and how closely you follow the instructions. If you are unsure about when to take a pregnancy test, it’s best to consult with your healthcare provider.

How to calculate safe period to avoid pregnancy

To calculate the safe period to avoid pregnancy, you need to understand your menstrual cycle. The safe period refers to the days in your menstrual cycle when you are unlikely to get pregnant. This is typically calculated by subtracting 18 from the length of your shortest menstrual cycle and by subtracting 11 from the length of your longest menstrual cycle.

For example, if your shortest menstrual cycle was 26 days and your longest menstrual cycle was 32 days, your safe period would be from day 8 to day 21 of your cycle. It’s important to note that this method is not foolproof, as factors such as irregular periods and changes in ovulation can affect your fertility. Therefore, it’s recommended to use other forms of contraception if you want to avoid pregnancy.

Consult with your healthcare provider to determine the best contraception method for you.