If you're reading this, you already care about getting it right. Most of us were never taught much about periods beyond one awkward school lesson, so it's normal to feel unsure what actually helps. The good news: support is mostly practical, and it gets much easier once you understand that a menstrual cycle is a whole month, not just a few days.
First, what's actually going on
A typical cycle runs around 21 to 35 days and has four phases, each with different hormone levels. Hormones affect energy, sleep, appetite, mood and pain, which is why the same person can feel very different from one week to the next. It isn't "being moody". It's physiology, and it follows a pattern. Our plain-English guide to the four phases of the cycle covers the science in more depth.
What helps in each phase
During the period (menstrual phase)
Hormones are at their lowest and energy usually is too. Cramps are caused by the uterus contracting, and they can range from mild to genuinely debilitating.
- Take things off their plate. Cook, handle the chores, do the school run. Practical help beats grand gestures.
- Heat and comfort. A heat pack or hot water bottle, a blanket, their favourite snack. Keep period products stocked without being asked.
- Don't push plans. If they cancel, it's not about you. Offer a low-key alternative instead.
- Ask, don't guess. "What would help most right now?" works better than assuming.
After the period (follicular phase)
Oestrogen rises and energy usually comes back. This is often a good time for plans, dates, workouts and bigger conversations. Match their energy rather than treating the whole month as fragile.
Around ovulation
Mid-cycle, many people feel at their most social and confident. Some get a one-sided twinge of pain around ovulation. If you're trying to conceive, or trying not to, this is the fertile window. Understanding when it falls is a shared responsibility.
The week or so before the period (luteal phase and PMS)
Progesterone takes over, and many people experience premenstrual symptoms: tiredness, bloating, sore breasts, poor sleep, irritability, anxiety or low mood. This is often the phase where partners get it most wrong, because the period hasn't started yet and the cause isn't obvious.
- Expect lower energy. Plan quieter evenings and be flexible.
- Don't take short answers personally. Respond to the feeling, not the tone.
- Help with sleep and food. Cravings are real. So is broken sleep.
What not to say
- "Is it that time of the month?" Even when it is, it dismisses the feeling. The feeling is real whatever is driving it.
- "It can't hurt that much." Period pain varies enormously from person to person.
- "You're being hormonal." Hormones explain why something is harder. They don't make a concern invalid.
When to gently suggest seeing a doctor
Pain or mood changes that stop someone from working, studying or living normally are not something to just put up with. Encourage a GP visit if you notice:
- Period pain that painkillers don't help, or that's getting worse over time. Conditions such as endometriosis are common and often take years to diagnose.
- Very heavy bleeding, for example soaking through a pad or tampon every hour or two.
- Severe depression, anxiety or anger in the days before each period that lifts once it starts. This can be premenstrual dysphoric disorder (PMDD), which is treatable.
- Periods that stop or become very irregular. See our guide on why a period might be late.
The easiest way to know where they're at
You can't read minds, and nobody should have to announce their cycle. That's why we built partner sync into SheSync. If your partner uses it, they can invite you from inside the app. You'll then see which phase they're in, their predicted dates and the symptoms they've logged, along with plain-English notes on what that phase tends to mean. They choose what to share and can stop at any time.
If they don't use a tracker yet, don't install one on their behalf. Send them this comparison of period trackers for couples and let them decide. Sharing works best when it's their idea.
Frequently asked questions
How can I support my girlfriend or wife on her period?
Focus on practical help: take chores and plans off her plate, offer heat packs, comfort food and rest, keep period products stocked, and ask what would help instead of guessing. Remember the rest of the cycle matters too, especially the week before a period, when PMS can bring tiredness, poor sleep and low mood.
What should you not say to someone on their period?
Avoid dismissing how they feel, such as asking "is it that time of the month?", saying "it can't hurt that much" or calling them "hormonal". Hormones can make things harder, but the feelings and pain are real and deserve a real response.
How can I know what phase of her cycle my partner is in?
The simplest way is for your partner to share their cycle with you through an app. In SheSync, the person tracking sends an invite, and you then see their phase, predicted dates and logged symptoms with plain-English explanations. Sharing is always their choice and they can stop at any time.
When is period pain a reason to see a doctor?
If pain stops someone from working, studying or daily life, isn't helped by painkillers, or is getting worse over time, it's worth seeing a GP. Very heavy bleeding and severe mood changes before each period are also good reasons to get checked.
Last updated 29 September 2026. SheSync is a tracking and education tool, not a medical device or contraceptive method. For medical questions about your cycle, talk to your doctor.