When to worry about no periods yet

[Shmoigel]

My daughter is 14 and will be 15 in two months.
I was a late bloomer but had begun by 14.

I don’t want to worry her unnecessarily but at what age would you speak to the GP about it?

She is my only daughter but I have worked with girls in a youth capacity for years, enough to know that it’s unusual. All her friends have started theirs.

Any advice appreciated

I was 9 and that was 30 years ago. Even then it wasn’t unusual to be 11/12

I wouldn’t worry yet. My daughter was 15 when she started. She matured very late physically compared with her friends.

At 13, she was tiny and completely undeveloped. Someone thought she was 8!

At 15 everything changed: her periods started, her body developed and she had a huge growth spurt, becoming one of the tallest in her class rather than the shortest.

My dd was referred for an ultrasound when she turned 16. They said they could see she was about to ovulate on the scan and sure enough she started 2 weeks later! I wasn’t concerned because I was almost 16 when I started.

My DD was 14 in Sept and hasn’t started yet. Her dad is a GP and hasn’t suggested any concerns. She is developing and I would expect it to be some time in the next 12 months ish. Her aunt was 15 and me & her sister were 12…

DD1 was two weeks shy of her 18th birthday when she started. First went to GP at 15 but nothing was done. She was referred at 16 and had no end of blood tests and scans done. There was no reason for it and she was just an outlier. In hindsight, she is very pleased that she started late.

Somebody has to be at either end of the bell curve.

What's your daughter want? 14 nearly 15 is quite normal especially if slim. If my mother took me to the doctors about this, I would have been mortified and it would have really soured our relationship ( I was nearly 16 and quite frankly glad that I didn't need to deal with periods).

I wouldn't worry for another year.

It’s so weird. My tiny, low birth weight twin 1 started at 9 (as I did) but her much more developed, taller, bigger twin sister was a good year or so later.

No it's not. If she hasn't started by 16 then go to the GP but 14 is perfectly within normal.

I started at 14, 55 now and still going on!

Where did you read that??

No, that says if girls have no sign of puberty by around 14. It also says

Delayed puberty
Delayed puberty is when:

• boys have no signs of testicular development by 14 years of age
• girls have not started to develop breasts by 13 years of age, or they have developed breasts but their periods have not started by 15

I'm sure that person is referring to trends, not individuals

I did gymnastics and was very slim, and didn't start periods till just turned 15.

This thread is making me panic a bit!

My dd is 15 and a few months. She was very underweight her whole childhood and very athletic and sporty (karate, swimming, netball, lots of walking) until last year when she had a growth spurt and her thighs and bum filled out a little bit. She gets spots occasionally. But still pretty flat chested. And we had the teenage moods a few years ago but recently she’s been a pleasure to live with - does that mean she’s stalled hormonally?

She is a size 6 and about 5 foot 6 inches, definitely still growing.

It’s a bit like looking at the sky thinking “if those clouds blow in, there might be rain” and the sky stays overcast and the rain never comes.

DD is very private and she always crosses her arms when we go swimming, reckon she is embarrassed she is an A cup. She tells me she is often mistaken for a year 8 (age 12) at school despite her height!

I have read on NHS previously not to go until dd is age 16 but now… panicking!

My friend was in her early 20s! Did investigations but she just didn't weigh enough. She did gain some weight and then all came good.

Advice from a dear friend, a consultant endocrinologist, 20+ years ago

I was 15, think my period was the last thing to arrive after every other signs of puberty so as long as she's got other signs I would have thought it's fine.

For those asking for studies about the correlation between late onset of periods and early menopause I'm sorry I don't have any. It's what I was taught as a student midwife many years ago and my own personal experience backed it up with starting at 16 and finishing at 42.

Im not a doctor etc however, speaking from what I have going on with my daughter who just turned 19 in November 2025 with no periods !
However, very developed 5’3, 125. 36 D.
Born with 1 kidney and been losing her hearing since age 4 and has scoliosis and it was never a question since I had two other pregnancies with birth defects. Two sons 6 years apart 1 was born with Half a brain my other pregnancy he was born with half a heart. Total of 5 pregnancies i had with the same father fo all 5.
I have two other sons that have no medical issues as of now. 31 & 26. My other two with the birth defects didn’t make it.
So my daughter is our miracle baby.
before her 19th birthday she saw the doctor and here goes our story.
The doctor finally ordered her testing which her blood came back abnormal. So scans were ordered. She just had an ultrasound last week. Which detected she was born with no uterus and ovaries!! 😪 this is all so new to us and something that is very rare and her doctor has recommended her to have some genetic testing.
i myself was thinking she’ll start late. I started at age 9 with so many issues since age 20. However, never have i ever thought that this was ever possible. There’s another rare case of 1 out of 5k in the world who are born with no uterus however, per the doctor my daughter not having ovaries either.
please get your daughter checked out. Everyone is different and i held off thinking the same as hearing others stating it’s normal. I had a friend she didn’t start until she was 18 years old so it’s best to find out now rather then later like we’re going through now. (I also thought once she became sexual active that it’ll trigger it because I’ve heard that too and nothing).
The other possibility was benign tumors in the pituitary gland. That can cause no periods. Which she still has an appt for an MRI end of this month.
I pray that everything is going to be good for your daughter and if she’s stressing that can also cause issues.

I was sixteen.

My daughter hadn’t started her period until she was 15, and I was very worried she was so late too. I was close to calling the GP just before she started.

I didn't start until I was nearly 15. Although that was a while ago! Got pregnant very easily at 38 and still no signs of perimenopause at 45.