In short

Periods usually start around age 12, though they can begin any time between 8 and 16. As a single dad, you don't need specialist knowledge to handle this well. 

You need basic information, the right products in the house, and the willingness to talk about it without making her feel embarrassed. 

The most useful thing you can do is start the conversation before her first period, not after it.

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Period tracking & more for teens. Guidance for parents.

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When should I expect her first period?

The NHS states that most girls get their first period around age 12, though anywhere between 8 and 16 is within the normal range. 

A useful timing signal: periods typically arrive about two years after breast development begins.

Other signs that her period may be coming soon include pubic and underarm hair, a growth spurt, and vaginal discharge (white or clear fluid in her underwear, which is normal and healthy).

What do I need to have in the house?

Stock up before she needs it. Having products available before her first period means she is prepared, not caught off guard. 

Essential items:

• Pads in different absorbencies (light, regular, and night pads for heavier nights)
• Period pants as a backup option
• Suitable painkillers for period cramps
• A hot water bottle
• Spare underwear she is not precious about
• A first period kit she can take to school with her

Tampons and menstrual cups are options she can explore when she is ready, but pads are the easiest starting point for most girls. 

For more on this, check out luna’s article on choosing the best period products for tweens and teens.

How do I talk to her about it?

The NHS recommends talking about periods as an ongoing process rather than a single formal conversation. The most effective approach is to normalise it early.

You might simply say: "I know this isn't something we've talked about much, but I want you to know I'm completely fine talking about periods. They're just part of growing up, and I want to make sure you're prepared."

Keep it matter-of-fact. The more relaxed you appear, the more relaxed she will feel. 

You can use everyday moments, such as seeing period product adverts or passing the toiletries aisle, to open the conversation naturally.

What if her period starts and I don't know what to do?

Stay calm. Walk her through what she needs practically:

• Show her where the pads are (or send her to get them)
• Explain how to attach a pad to her underwear (sticky side down, central in the gusset)
• Tell her pads should be changed every four to six hours, more often on heavy days
• Wrap used pads in the wrapper or toilet paper and put them in the bin, not the toilet
• Reassure her that the amount of blood is normal, even if it looks like a lot

The NHS notes a normal period involves 20 to 90ml of blood over several days, which can look alarming but is within a normal range.

What about period pain?

Cramping is very common in the first day or two. Ibuprofen or other painkillers for period cramps taken at the start of cramps (with food) works well. 

Other period pain relief options include a hot water bottle held against the lower abdomen. Gentle movement like walking can ease discomfort.

If she has pain that regularly keeps her off school or seriously affects her daily life, that is worth a conversation with a health professional.

FAQ

She says she doesn't want to talk to me about periods. What do I do?

That is okay and not unusual. Respect her preference while keeping the door open: 

"That's fine. But just so you know, there are pads under the bathroom sink, and I'm here if you need anything." 

Practical preparation reduces the need for conversation.

Should I ask a female relative to help?

Only if she wants that. Many girls are absolutely fine with a dad handling this. 

Asking a female relative without her consent can make her feel that you find it too awkward, which can add to her discomfort.

What if she starts at school and I'm not there?

Reassure her before it happens that she can ask a teacher or school nurse for pads. Keep a small supply in her school bag too. 

A folded pad and a spare pair of underwear in a small pouch is a practical addition to her bag during the years leading up to her first period.

How long does a period last?

Periods typically last between two and seven days. The first few may be irregular in timing and duration as her cycle establishes itself.

You are more prepared for this than you think.

For more information, check out luna’s articles on how to have the father-daughter period talk and preparing dad for your daughter’s period.

Rated 4.8

Period tracking & more for teens. Guidance for parents.

Find out more