The most reliable way to push your period back a week is with hormonal medication, either by adjusting birth control pills you already take or by using a prescription pill specifically designed to delay menstruation. Both approaches work by keeping progesterone levels elevated, which signals your uterine lining to stay in place rather than shedding. The method that’s right for you depends on whether you’re already on hormonal contraception.
If You’re Already on the Combined Pill
This is the simplest scenario. Instead of taking the placebo (inactive) pills at the end of your pack, skip them entirely and start a new pack of active pills right away. Your body continues receiving hormones, so the withdrawal bleed that normally happens during the placebo week doesn’t occur. You can do this for one extra week to shift your period, or even run packs back to back for longer stretches.
The main trade-off is breakthrough bleeding, which is spotting or light bleeding that happens between expected periods. This is most common in the first few months of skipping placebo weeks. It’s not harmful, but it can be unpredictable and annoying, especially if the whole point was to avoid bleeding during a specific event. Taking low-dose estrogen pills in place of the inactive ones (rather than simply skipping them) can help reduce bloating and other symptoms during the extended cycle.
One practical note: if you’re going to run two packs together, make sure you have enough pills. You’ll need a prescription refill earlier than usual, so plan ahead by at least a month.
If You’re Not on Birth Control
For people who don’t take a daily contraceptive, the standard medical option is a prescription progesterone-based tablet called norethisterone. It works by mimicking the hormone that naturally keeps your uterine lining stable in the second half of your cycle.
The typical protocol for period delay is one 5 mg tablet taken three times a day (totaling 15 mg daily). You need to start taking it three days before your period is expected to begin. Your period will be held off for as long as you continue taking the tablets. To delay by one week, you’d take them for about 10 days total: the three lead-in days plus the seven days you want to push back.
Once you stop, your period typically arrives within two to three days. This means your next cycle may shift slightly, but most people return to their normal pattern within one to two months.
Norethisterone is more effective than combined birth control pills at preventing breakthrough bleeding during the delay, which makes it a solid choice for a one-time postponement like a vacation, wedding, or athletic event.
Timing Matters More Than You’d Think
The biggest reason period delay fails is starting too late. If you’re using norethisterone, you need to begin at least three days before your expected period. If your cycle is irregular and you’re not sure exactly when your period will arrive, starting five to seven days before your best estimate gives you a buffer. Once bleeding has already started, these medications won’t stop it or reverse it.
If you’re adjusting birth control packs, the timing is built in. Just skip the placebo row and move straight to the next pack’s active pills on the day you’d normally start the inactive ones.
Common Side Effects
Because you’re adding extra hormones (or extending their duration), side effects are possible. The most frequently reported ones with norethisterone include:
- Irregular spotting or changes in menstrual flow once you stop
- Breast tenderness
- Nausea or bloating
- Weight fluctuations
- Sleep disruption
- Acne or skin changes
Most of these are mild and resolve once you stop the medication and your period arrives. Norethisterone is a short-term solution, not something designed for monthly use as a period delay tool. People with a history of blood clots, certain cancers, or liver problems are generally not candidates for it, so a prescriber will screen for these before writing a prescription.
Do Natural Methods Work?
You’ll find claims online that apple cider vinegar, lemon juice, heavy exercise, or certain herbal teas can delay a period. There is no scientific evidence supporting any of these methods. No clinical study has demonstrated that a natural remedy can reliably shift the timing of menstruation. Some of these approaches, particularly extreme exercise or fasting, could disrupt your cycle over time, but not in a controlled, one-week-delay kind of way. They’re more likely to make your cycle unpredictable than to postpone it on command.
If your period is coming in a week and you need a guaranteed delay, hormonal options are the only ones with a track record of actually working.
How to Get Started
If you’re already on the combined pill, you don’t need a new prescription. Just skip the placebo week and start your next pack. If you’re not on hormonal birth control, you’ll need a prescription for norethisterone (called norethindrone in the U.S.). Many telehealth services and walk-in clinics can prescribe it quickly, but give yourself at least a week of lead time before your expected period to account for appointment scheduling and pharmacy pickup. Waiting until two days before your period is due will likely leave you without enough time for the medication to work.