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How Does an Ovulation Calculator Work?

If you’re trying to pin down the time you ovulate each month, then you have plenty of different tools at your disposal. It’s important to find this key date, as it’s the foundation upon which you can build all the rest of your plans for getting pregnant. It’s especially important if you have any health conditions which, like PCOS, can affect your menstrual cycle: if you ovulate irregularly or rarely, you need all the information you can get, to take advantage of those fertile windows when you can get pregnant.

When you’re making a decision about how you’re going to track your fertility, you need to understand the choices you have available. The decision is not about picking objectively the best one, but the one that best meets your specific needs.

OvuSense is looking into Ovulation Calculators to help you make the best choice for you.

What is an Ovulation Calculator?

An ovulation calculator is a tool, often available online or as an app that takes a few simple bits of information and uses them to give a prediction of when you will ovulate.

They normally ask for the date your last period started, and the length of your cycle (i.e., from period to period), and with these two bits of information they predict your next fertile window – those few days around ovulation when you can successfully conceive.

How Do They Predict?

The important thing about Ovulation Calculators is how they make those predictions: if their method is good the predictions are good, but if they don’t take into account what’s going on in your body they’re either not as strong, or potentially entirely useful as tool.

Most ovulation predictors rely on you having a regular cycle, that fits in with the average woman’s. When you enter the date your last period started, that tells the calculator how far into your cycle you are. When you enter the length of your menstrual cycle it uses that information to place where you are in your cycle.

Are They Accurate?

If you have a regular cycle, that fits in with the majority of women, these are calculators are a reasonable and convenient way to get some insight into when you’re likely to be most fertile – though you might want to back up their predictions by checking your cervical mucus, which changes in response to when you ovulate.

If your cycle is irregular, affected by stress or medication, or by health issues like Polycystic Ovary Syndrome, you’re going to need a better solution: something that works with the specifics of your cycle and your body, not just ‘the average’.

OvuSense measures your basal body temperature, which responds when your body ovulates, so it can give you a prediction that fits you specifically.

Find out more about core temperature technology and fertility here