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How Do You Know When You’re Ovulating?

Recognising ovulation is one of the most important things you can do when you’re trying to get pregnant. Ovulation is the anchoring event of your fertile window – the days in each menstrual cycle when you’re at your most fertile, and sperm stand the best chance of reaching a healthy egg within 24 hours of being released from the ovary.

There are several ways you can identify when you’re due to ovulate – allowing you to try to conceive in the five days running up to that event, and for the one day after, which boosts your chances of success. OvuSense is taking a look at your options, so you can find the most accurate answer.

Hormone Testing

Pregnancy tests work by checking your urine for the hormones indicating the presence of an egg, successfully implanted in the uterus and beginning to develop into a foetus. Ovulation Predictor Kits – often known as OPKs – work in a similar way. They test your urine for the spike in Luteinising Hormone (or LH) that causes your ovaries to eject an egg. Some look very similar to pregnancy tests, with a line appearing on the results stick to indicate a yes or no result. Others are more sophisticated, and give you a digital readout that’s easier to interpret, along with statistics tracking functions.

OPKs are convenient to use, and are available over the counter from supermarkets and chemists on the high street, so they’re also easy to access. Unfortunately, they’re not always the best option. The accuracy of the results can vary throughout the day – some recommend using them first thing in the morning, others later in the afternoon, and the lack of consensus can be a worry. Also, if you have any kind of hormone disturbance, from simple low levels of LH to more systemic issues like Polycystic Ovary Syndrome, these tests can lose their effectiveness altogether.

Basal Body Temperature

Testing your basal body temperature is less convenient than using an OPK but it can give you more accurate results, especially if you’re one of the people for whom OPKs aren’t as effective.

Your basal body temperature is the low temperature your core drops to when your body is at rest for an extended period. The minimum temperature of your body changes in response to its internal processes, and if you measure it first thing in the morning every day, you may be able to spot the pattern that reveals when you’re going to ovulate. A drop of one tenth of a degree, followed by a sustained rise over the next three days shows that your body is preparing to ovulate and that an egg has then been released.

OvuSense takes some of the hard work out of using this method: our sensor measures your BBT right through the night, for more accurate results, logs the temperature for you, and looks for the patterns that tell you when you’re going to ovulate. As well as a simple yes/no answer to the question of whether you’re ovulating, our app also gives you a longer term prediction of your next fertile window, allowing you to plan better.

To learn more about your cycle and hear from Ovusense customers visit ovusense