You can even track your period history within the app. Plus, you can exchange questions and tips with your fellow users in the app's community section. Bleeding occurs every 28 days for the majority of women, but it is common for the menstrual cycle to be either shorter or longer in duration and for bleeding to start anywhere from day 21 to day This reduces the time needed to completely load the site. It clearly illustrates your menstruating and fertile days in a single, detailed chart and allows to enter your symptoms and conditions into a calendar not just a list , so you know exactly what to expect and when. Flo sends you daily health insights, tips, and articles based on the amount of info you track. Your computer will be able to connect to other participants that distribute the material. Not only can the app help women who are avoiding or attempting pregnancy, but it also helps those who are undergoing fertility treatments such as intrauterine insemination and in vitro fertilization. Flo uses machine learning to accurately and reliably predict menstruation and ovulation. For this very reason, the app market is flooded with period trackers that aim to offer insight into your monthly cycle. The convenient little black box contains an assortment of tampons, pads, liners, and even a bonus bar of chocolate. Flo Period Tracker iPhone: Here is how it could happen: It does not contain the content itself, only the information like the name, size and a list of other machines that share the files. But it doesn't just set off a loud-and-clear alarm to make sure you don't fall out of your routine — it also helps you plan ahead for your next order, checkup, and vacation after all, it's easier to pack if you know when your period is coming.