How do I know that a contraceptive injection is working and when will bleeding occur?

Contraceptive injections are one of the most effective methods of preventing pregnancy. The Pearl index for this method of contraception is 0.3, which means that 3 out of 1,000 women will become pregnant within a year despite using it. During the first months of use of injections, bleeding may be irregular, with the time of use of injections, bleeding may disappear completely. If you take the injection regularly, every 3 months - you will not get pregnant. Before the first injection, you can take a home pregnancy test, which you will buy at the pharmacy or online with home delivery. More here: https://www.gdziepolek.pl/artykuly/test-ciazowy-jaki-wybrac-i-kiedy-zrobic According to the manufacturer of Depo-Provera: Most women receiving medroxyprogesterone acetate suspension for injection have disorders of the normal menstrual cycle (e.g. irregular or unpredictable bleeding and/or spotting, excessively heavy or prolonged bleeding). As the use of medroxyprogesterone acetate suspension for injection continues, fewer and fewer women experience irregular bleeding and more and more menstrual periods disappear. I enclose a link to the page where you will check the availability of contraceptive injection in pharmacies and you can book the drug: https://www.gdziepolek.pl/produkty/21949/depo-provera-iniekcja/apteki