When your period starts, the first step is grabbing a pad, tampon, or other menstrual product to absorb or collect the flow. If you’re caught off guard, folded toilet paper in your underwear works as a temporary fix until you can get a proper product. Most periods start light, so you typically have some time before the flow picks up.
Whether this is your first period or you just want a refresher on managing it well, here’s everything you need to handle it comfortably.
Choosing a Menstrual Product
Pads and tampons remain the most popular options, each used by roughly half of all menstruating people. Pads stick to the inside of your underwear and absorb blood externally. Tampons are inserted into the vagina and absorb blood internally. Panty liners, which are thinner versions of pads, are useful for light days or as backup protection.
Menstrual cups are flexible silicone funnels that sit inside the vagina and collect blood rather than absorbing it. About 1 in 5 people use them. They can be worn for up to 12 hours before emptying and rinsing, which makes them convenient for long days. Period underwear, used by a similar percentage, has built-in absorbent layers and works like regular underwear with no additional product needed.
If you’re just starting out, pads are the easiest to use because they don’t require insertion. There’s no wrong choice, though. It comes down to comfort, activity level, and personal preference. Many people use a combination, like tampons during the day and pads at night.
Sleeping With a Tampon
About 60% of tampon users wear one overnight. This is generally fine as long as you put in a fresh tampon before bed and change it as soon as you wake up. The key is not exceeding 8 hours of wear. If you tend to sleep longer than that, a pad or period underwear is the safer overnight option.
What’s Actually Happening in Your Body
Your period is your uterus shedding its inner lining. Each month, that lining thickens in preparation for a possible pregnancy. When pregnancy doesn’t happen, a structure in the ovary called the corpus luteum breaks down, and your progesterone levels drop sharply. That drop in progesterone is the essential trigger. It sets off a chain reaction: enzymes break down the tissue, blood vessels in the uterine wall constrict, and the lining detaches and flows out.
The progesterone withdrawal also increases local prostaglandins, which are chemicals that cause the uterus to contract. Those contractions are what you feel as cramps. They tend to peak during the heaviest flow, usually within the first day or two.
A typical period involves about 60 milliliters (roughly 2.7 ounces) of total blood loss spread over several days. That’s less than you might think, since menstrual fluid also contains tissue and mucus, which adds to the volume you see.
Relieving Cramps
Anti-inflammatory pain relievers like ibuprofen and naproxen are the most effective options for menstrual cramps because they block prostaglandin production, directly targeting the cause of the pain. The best strategy is taking them at the first sign of cramping rather than waiting until pain becomes severe. Over-the-counter ibuprofen doses (200 to 400 mg, repeated every 4 to 6 hours as needed) work well for most people. Naproxen lasts longer per dose, so you don’t need to take it as frequently.
Heat on your lower abdomen is surprisingly effective too. Studies on heat therapy for menstrual pain have tested temperatures around 39 to 45°C (about 102 to 113°F), applied for 8 to 12 hours via adhesive heat patches or hot water bottles. You don’t need anything fancy. A heating pad, a microwaveable heat pack, or even a warm water bottle held against your belly works. Combining heat with a pain reliever tends to give better relief than either one alone.
Magnesium supplementation has shown benefits for preventing cramp severity, premenstrual symptoms, and menstrual migraines. Foods rich in magnesium include dark leafy greens, nuts, seeds, and dark chocolate. Staying hydrated also helps, since dehydration can make cramps feel worse.
Building a Period Kit
If you’re new to periods or tend to get caught off guard, keeping a small kit in your bag makes a big difference. A good period kit includes:
- 2 to 3 pads or tampons (regular absorbency covers most situations)
- A panty liner for light days or backup
- A pair of clean underwear
- Unscented travel wipes for freshening up
- A resealable plastic bag for stained underwear
- A pain reliever like ibuprofen
- A stain remover stick or wipes
Dark-colored bottoms are your friend during your period, especially in the early months when the timing is less predictable. If you do get a stain, rinsing it with cold water (not hot) as soon as possible prevents it from setting.
Tracking Your Cycle
The single most useful thing you can track is your start date each month. With just the start dates of consecutive cycles, you can estimate your cycle length and predict when your next period will arrive. Most cycles run between 21 and 35 days.
Beyond the start date, noting your flow intensity (light, medium, heavy), cramp severity, mood shifts, and any other symptoms like headaches or fatigue gives you a detailed picture over time. This kind of prospective daily tracking is far more accurate than trying to remember how you felt last month. Research has shown that people recalling premenstrual symptoms after the fact tend to overestimate them compared to what they actually recorded in the moment.
A period tracking app, a simple calendar, or even a notes file on your phone all work. If you ever need to discuss your cycle with a doctor, having several months of logged data is genuinely helpful for identifying patterns and getting an accurate diagnosis.
What Counts as Heavy Bleeding
It’s normal for flow to vary from day to day, with the first two days usually being the heaviest. But there’s a threshold where heavy becomes too heavy. The CDC defines heavy menstrual bleeding as needing to change your pad or tampon after less than 2 hours, or soaking through one or more products every hour for several consecutive hours. Passing blood clots the size of a quarter or larger is another sign. If any of these happen regularly, it’s worth getting evaluated, since total blood loss consistently above 80 milliliters per cycle is considered clinically heavy and can lead to iron deficiency over time.
When Cycles Are Irregular at First
If this is your first period or you’re in your first couple of years of menstruating, irregular cycles are completely normal. Your period might come every 3 weeks one month and skip 6 weeks the next. A large study of people born between 1950 and 2005 found that it commonly takes 2 years or more for cycles to settle into a predictable rhythm. Some people take 3 to 4 years. This doesn’t mean anything is wrong. Your hormonal system is still calibrating.
During this time, carrying supplies with you daily and wearing a panty liner on days you think your period might show up can save you from surprises. As your cycles become more regular, predicting your period gets much easier.