Depo Shot Calendar: When Is Your Next Shot Due?

TL;DR

• Depo Provera is given once every 13 weeks (about every three months), with a flexible window between weeks 11 and 13 from your last injection.

• If your shot is more than two weeks late (beyond 15 weeks), you need a pregnancy test before your next dose and should use backup contraception for seven days after.

• Your first injection should be given within first five days of your menstrual period for immediate protection.

How Does Depo Shot Schedule Work?

The Depo Provera shot is one of simplest birth control methods to maintain. You get one injection every 13 weeks, which works out to four shots per year. The Reproductive Health Access Project's perpetual calendar provides a day-by-day reference showing full dosing window based on three-month intervals with flexibility between weeks 11 and 15.

Your first shot should happen within first five days of your menstrual cycle. When timed this way, protection starts immediately. If you get shot at any other point in your cycle, you will need to use a backup method like condoms for first seven days.

After that first injection, you return every 13 weeks. Most providers will schedule your next appointment before you leave office. Setting a phone reminder for one week before your due date is a simple way to stay on track.

What Is Safe Window If You Are Early or Late?

You have some flexibility built into schedule. You can safely get your next shot as early as 11 weeks after your last one. The ideal target is 13 weeks. Most guidelines allow up to 15 weeks without needing extra precautions, though standard recommendation is not to go beyond 14 weeks.

If you go past that 15-week mark, your provider will likely ask you to take a pregnancy test before giving next injection. You will also need to use backup contraception for seven days after receiving late dose. The medication does not "stack," so getting a shot early does not push your next due date further out. Your next shot is still counted from date you actually received injection.

How to Track Your Depo Schedule

The simplest approach is to count 13 weeks (91 days) from each injection date. You can do this with a regular phone calendar, a period-tracking app, or even a printable perpetual calendar that many clinics offer.

Here is a quick reference. If your shot was in early January, your next one is due in early April. An April shot means a July appointment. July leads to October, and October brings you back to January. Four times a year, roughly same weeks each cycle.

If you are comparing Depo to other hormonal options and wondering how different methods affect mood, look on best birth control for mood stability covers how various methods stack up.

What Happens If You Miss a Shot Entirely?

Missing a Depo shot does not cause immediate harm, but it does leave you unprotected against pregnancy. Ovulation can return as soon as one to two months after a missed dose in some people, though for others it may take several months or longer.

If you realize you have missed your window, use backup contraception right away and schedule an appointment as soon as possible. Your provider will confirm you are not pregnant before giving next injection.

One common concern with Depo Provera is weight gain. Studies show an average gain of about five pounds in first year. If you are weighing different long acting options and want to understand how other methods compare, look on Nexplanon and weight gain breaks down what research shows for implant.

Conclusion

Staying on schedule with Depo Provera is straightforward once you know rhythm. One shot every 13 weeks, with a safe window from weeks 11 to 15. Set a reminder, keep your appointments, and talk to your provider right away if you fall behind. That is all it takes to keep your protection consistent.