The most reliable way to delay your period by one week is with a prescription medication called norethisterone, a synthetic progesterone tablet you start taking three to five days before your period is due. If you’re already on the combined birth control pill, you can skip your placebo week and start a new pack immediately. No natural method has enough scientific evidence behind it to be considered effective.
Norethisterone: The Standard Prescription Option
Norethisterone is a progesterone-like hormone that keeps the lining of your uterus stable, preventing it from shedding. You take 5 mg two or three times daily, starting three to five days before your expected period. As long as you keep taking the tablets, your period stays on hold. When you stop, bleeding typically starts within two to three days.
For a one-week delay, you’d take the tablets for roughly 10 to 14 days total (the days leading up to your period plus the extra week). It can safely be taken for up to three to four weeks if needed, though most people only use it for shorter stretches. In a randomized trial published in BMC Women’s Health, only 8% of women using norethisterone experienced breakthrough spotting, compared to 43% of women using combined birth control pills continuously. That makes it the more dependable choice for a short-term delay.
The timing matters. If you start too late, your body may have already begun the hormonal cascade that triggers your period, and the medication won’t work as well. Three days before your expected period is the minimum lead time, so plan ahead.
Common Side Effects
Norethisterone is generally well tolerated for short courses, but it can cause side effects that mirror early pregnancy symptoms: nausea, bloating, breast tenderness, and changes in mood or sleep. Some women notice acne or slight weight fluctuation. These effects are temporary and resolve after you stop the tablets.
There is one important safety consideration. At the doses used for period delay (10 to 15 mg per day), norethisterone partially converts into estrogen in the body. This raises the risk of blood clots in a way similar to combined hormonal contraceptives. If you have a personal or strong family history of blood clots, are significantly overweight, are about to have surgery, or carry a known clotting disorder, your doctor may suggest an alternative medication instead. A BMJ Sexual & Reproductive Health review specifically cautioned against prescribing norethisterone at these doses for women with elevated clot risk.
Using Birth Control Pills to Skip a Period
If you already take a combined oral contraceptive pill (one that contains both estrogen and progestin), you have a built-in option. Instead of taking the inactive pills or having your seven-day break, skip straight to the next pack of active pills. Your body won’t go through the hormone withdrawal that triggers bleeding, and your period simply doesn’t come that cycle.
This works best with monophasic pills, where every active tablet has the same hormone dose. With multiphasic pills (where the dose changes across the pack), skipping the break can be less predictable. Monophasic pills can technically be taken continuously for as long as you want, though the longer you go, the higher the chance of breakthrough spotting. For a single one-week delay, most women have no issues.
If you use a hormonal patch or vaginal ring, the same principle applies. Instead of removing the patch or ring for your scheduled break week, replace it immediately with a new one.
Do Natural Methods Work?
You’ll find claims online that apple cider vinegar, lemon juice, gram lentils, or heavy exercise can push back a period. There is no reliable scientific evidence supporting any of these methods. Your menstrual cycle is driven by precise hormonal shifts between estrogen and progesterone. Foods and home remedies don’t alter those hormone levels in a meaningful or predictable way.
Intense physical activity can eventually suppress periods in some people, but this happens over weeks or months of extreme exertion and caloric deficit. It’s not something you can deploy strategically for next week’s vacation, and deliberately inducing it comes with real health consequences like bone density loss.
What to Expect After You Stop
Once you stop taking norethisterone, your period will arrive within two to three days. It may be slightly heavier or longer than usual for that one cycle, since the uterine lining has had extra time to build up. This is normal and typically resolves by your next cycle. Your regular menstrual pattern usually returns within one to two months.
If you skipped your pill break, your withdrawal bleed will come when you finish the second pack and take your usual break. Some women find this bleed is lighter than normal, since the continuous hormones kept the lining thinner.
How Far in Advance to Plan
Norethisterone requires a prescription, so you’ll need time to see a doctor or use an online consultation service. Factor in at least a week or two before your trip or event. You’ll want the tablets in hand with enough time to start them three to five days before your period is due. If your cycle is irregular and you’re not sure exactly when your period will arrive, mention that to your doctor so you can plan a wider window.
If you’re already on the combined pill, no extra planning is needed beyond having your next pack ready. Just skip the break and continue with active pills.