![Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41746-019-0152-7/MediaObjects/41746_2019_152_Fig4_HTML.png)
Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine
i-know - If you have short menstrual cycles or irregular periods, there is a greater chance that you might have an egg present during the time that you are having a period.#OvulationMyths
![Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine Real-world menstrual cycle characteristics of more than 600,000 menstrual cycles | npj Digital Medicine](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41746-019-0152-7/MediaObjects/41746_2019_152_Fig1_HTML.png)