AIBU to worry about my 15-year-old missing 2-3 period?

One of my Dds was fairly regular when she started then went nearly a year with no period & it turned out to be PCOS.

We sought advice from the GP after a few months, then again & were told it was normal, we went private when it was getting towards a year.

Periods in teens can be all over the place but once you have ruled out pregnancy then I would consider exploring PCOS.
The symptoms vary wildly between women which is why lots of women don't actually realise they have it until perhaps they are trying to conceive.

Well so be it. I think we should believe what our teenage daughters tell us so they know they have a safe space when they need to share. If a Dr insists on a pregnancy test despite being told a pregnancy test isn't required that's on the Dr. Maybe a compromise would be to purchase one and bring it in a bag, explaining to DD is might be a standard requirement then do a test there as proof so the Dr will investigate.

That's a waste of an appointment and could delay her getting diagnosed and treated (or if it does turn out that she is pregnant, an additional wait for dating scan/pregnancy care/supplements and a reduction in her potential to make choices).

Asking a person who has no sexual experience to take a pregnancy test is insulting and humiliating. Yes of course she could be lying but it's as likely, or more so, that she is not. As her mum you have to believe her. To insist that she does this regardless of what she tells you will show her you don't trust her and also that you condone her being sexually active at that age, neither of which you'd want. Bring her to the Dr, if Dr insists on her taking a pg test at home then that's different. You can explain to her it's standard procedure to rule it out before they move to the next investigation and no reflection on whether they believe her or on what they think of her.

Speaking from experience from 20 years ago, a GP will send her away saying 'go and buy a pregnancy test and come back if it's negative'.

I was not impressed at the way they treated her - she wasn't pregnant, wasn't sexually active and even if she had been, by treating her like that, they stood a very good chance of missing girls who were being abused/could end up concealing a birth.

Same here
But the Op says her daughter is largely regular
I was never regular.

When I left home for the first time, to go to college, my periods stopped, and I was absolutely certain I was not pregnant, but it was worrying that I also felt so terribly tired. I guess I was also mildly stressed by living away from home and fending for myself more, and the academic demands were (not surprisingly) a step up on my school studies, although I was happy in my new setting.
(I have also known the reverse during my teaching career, where the "change of air" has precipitated the first period on School Journey or Guide camp!)
Luckily one of my fellow students in the hall of residence, who had previously had the same problem, made a suggestion which proved to be on track - I was anaemic.
Meals were served in sittings, and as first years, we got the last one, by which time the vegetables had been languishing in bain-marie containers long enough for all the Vitamin C to be long gone, and I learned from my new friend that if you lack Vitamin C, your body will not absorb iron efficiently.
The solution was a mug of cocoa daily (real cocoa, not drinking chocolate!) and a portion of fresh fruit. I was lucky that, for me, the solution was so simple.
It may be that your daughter is anaemic, especially if her periods can be heavy when they happen, it may be that there is some other more complex medical cause, but PP's are quite right that your GP will want to eliminate the obvious possible cause before embarking on more intrusive tests.
You could put it to her that it would save time to try the simple stuff at home before seeking advice.
I hope you are able to sort this out easily.

I thought nothing of going 6 months without a period when I was a teenager and my mum took me to the doctor but didn’t say why and it was only later that I twigged that she wanted to see if I was pregnant (this was 1970’s). I only had regular periods when I went on the pill. I also have had weight issues throughout my life. When I wanted to get pregnant I had tests and found I had PCOS and I had to have a course of Clomiphene to get pregnant. There’s a few metabolic disorders that are linked together causing insulin resistance and PCOS is one of them.

Well exactly, any one of the pcos symptoms on their own can point to any number of other conditions.

My friend's teenager also went a few months without a period - a couple of years ago. It honestly could be just ordinary adolescent hormonal turmoil, plus my friend has PCOS and wondered if her DD might have it too. Stress, diet, general teen body changes etc can all mess with teenage girls' cycles.

I suspect if you take her to the doctor, they will insist on doing a pregnancy test as a matter of routine, so it might be worth taking her simply so she ends up having to take one without you implying that you don't trust her.

You can have PCO.

Why would it be sadly though? Without the appropriate symptoms linking to pcos it can’t be actually defined as PCOs, because it isn’t. Any of the symptoms on their own could point to countless other conditions.

You don't need to be overweight to have PCOS. Skinny as anything but don't ovulate over here.

If she hasn’t had a period for 90+ days she needs to see her doctor. I used to regularly have long cycles and they used to want to force it with medication after 90days because it’s not good just let your body keep building up lining.

Same here. My DD has also regularly been prescribed both iron and B12 and recently had to have an iron infusion as her levels were so low.

Good way to word it.

Take her to GO to check everything is ok.

Take her to your GP- they will ask the awkward questions.
It could be stress but regular for 2 years , putting on weight ,and now no period for 2 months. Occam's razor suggests she is pregnant.

Absence of periods would be a symptom of a overactive thyroid, however she would not have gained weight with this, quite the opposite,that is a symptom of underactive thyroid.

Yes, sadly I'm well aware of this. It is why it took 15 years to get a diagnosis for my daughter.

I've just taken my 17yo to the GP because she's had no periods for over 6 months. We didn't do a pregnancy test because I knew the chance of her being pregnant was non-existent. I told her the GP might want one but she just asked her if she was sexually active and then checked her tummy. We're waiting for blood tests.

With weight gain I'd assume pregnancy or thyroid issues.

My friends mum was adamant and very sure her daughter was not sexually active.

Her grandchild is turning 24 years old next week.

Op just check so you can take pregnancy off the list.

@Elphabayo mine was similar except her periods started to become more erratic over time, eventually ending up with missing a couple. Turns out she has hypothyroidism and PCOS. The doctor did stress that if she doesn't have a period for 3 months that she must go to them asap for a jab to bring it on or it can start to do permanent damage.

I bought a thyroid test from Boots (the one that's around £30 rather than the other one) to find out she had hypothyroidism in the first place though as it takes forever to get a doctors appointment here plus we would have just had the usual 'it's stress/anxiety' trotted out. The GP then did more blood tests to confirm it and has done more going forward in order to get her medication dosage right and she does now cycle relatively normally. She's also on agnus castus for the PCOS too. At no stage did they ask for a pregnancy test.

I would say stress, or some sort of hormone imbalance. Explain to her you will make an appointment with the doctor but they will expect her to have out ruled pregnancy before so can she do test at home if she’s not pregnant and your sure thyroid issues or pelvic problems such as cist or pcod all of which need the doctors intervention and blood test.

My daughter when 17 had a lot of missed periods (say 2 then had a period and so on) and weight gain (not sexually active either ) it took a while to be correctly diagnosed as overactive thyroid which is unusual as usually causes weight loss. Ask GP to check thyroid levels , hope all ok x