If you are in your forties, your periods have started to change, and you are sleeping badly, sweating at night or feeling unlike yourself, perimenopause is a likely explanation. It is worth talking to a doctor about hormone therapy once those symptoms are getting in the way of work, sleep or your relationships. You do not have to wait for your periods to stop.
That last point surprises a lot of women. Many of the women who ask us about hormones have already been told they are “too young” or that their bloodwork looked normal. Both of those can be true and the symptoms can still be hormonal.
What is perimenopause, exactly?
Perimenopause is the run-up to menopause. Your ovaries do not switch off on a set date. Over a few years, the hormones they make, mainly estrogen and progesterone, start to rise and fall unpredictably.
Menopause itself is a single point in time: twelve months in a row without a period. Everything before that point, while the hormones are see-sawing, is perimenopause. Everything after it is postmenopause.
Most women notice the first changes somewhere in their forties. For some it starts earlier. It can last a few years or quite a few more.
How do I know if my symptoms are perimenopause?
Periods that change are usually the first clue. They might come closer together, further apart, get heavier or lighter, or skip a month and then return.
Around the same time, many women notice some of these:
- Hot flashes, or waking up soaked at night
- Sleep that is broken even when you are exhausted
- Mood swings, irritability or anxiety that feel new
- Brain fog and trouble finding words
- Lower sex drive, or dryness that makes sex uncomfortable
- Weight settling around the middle even though nothing about your eating has changed
None of these on its own proves anything. Thyroid problems, low iron, depression and plain stress can all look similar, which is one reason we start with a proper history and lab work instead of guessing.
Can a blood test confirm perimenopause?
Sometimes, but not reliably on its own. Because hormone levels swing from week to week during perimenopause, a single test can come back in the normal range on a good day. Your age, your cycle history and your symptoms count for at least as much as one number.
That is also why “your labs were normal” is not always the end of the conversation.
When should I consider hormone therapy?
The honest answer is when the symptoms are affecting your life and you would like them to stop. There is no score you need to reach.
Hot flashes and night sweats are the symptoms hormone therapy is best known for helping. Sleep often improves along with them, partly because you are no longer waking up overheated. Some women find their mood and concentration steady out as well.
Timing matters in another way, too. For healthy women, the medical thinking is generally that the balance of benefit and risk is most favourable when hormone therapy is started around the time of menopause, not many years after it. That is a conversation to have with your doctor early, while all the options are still open.
Who should not take hormone therapy?
It is not right for everyone. A personal or family history of hormone-sensitive cancer, a history of blood clots, or certain heart and blood vessel conditions can rule it out or call for a very different plan. Dr. D’Alessio goes through your health history and your labs before recommending anything, and some women leave that first visit with a plan that does not involve hormones at all.
What does hormone therapy involve at our practice?
It starts with a consultation and lab work at our office in Towaco. Every plan at Montville MedSpa & Pain Center is overseen in person by Dr. Donna D’Alessio, and the dose is set from your own results and history.
For women, that usually means estrogen, and progesterone as well if you still have a uterus, because estrogen on its own can thicken the lining of the womb. We offer injections and topical creams or gels, and we will talk through which suits the way you live.
After you start, we see you again and repeat your labs, adjusting the dose as your levels change. Perimenopause is a moving target, so the plan that is right in the first month may need changing later on.
You can read more about how it works on our hormone replacement therapy page, and about why we do it in the office and not over a video call on our hormone therapy overview.
How long before I feel a difference?
Most patients start noticing changes in energy, mood and sleep within two to four weeks. The fuller effect usually takes two to three months, as your levels settle into a steady range. Everyone responds a little differently, which is why the follow-up visits matter.
Are there side effects?
Some women have breast tenderness, bloating, mood changes or a few breakouts in the first weeks while the dose is being worked out. These usually settle. If they do not, the dose or the method can be changed. Tell us early; there is no prize for putting up with it.
Frequently asked questions
Am I too young for perimenopause at 42?
No. Perimenopause commonly begins in the forties, and for some women before that. If your periods are changing and the other symptoms fit, it is reasonable to ask.
Do I have to stay on hormone therapy for life?
Not necessarily. Some women use it to get through the years when symptoms are worst and then taper off. Others choose to continue. We review it with you regularly, and the decision stays yours.
Can I still get pregnant during perimenopause?
Yes, it is possible until you have gone a full year without a period. Hormone therapy at the doses used for symptoms is not a form of contraception, so talk to us about that if it applies to you.
Do men’s hormone treatments work the same way?
The idea is similar, restoring a hormone that has dropped, but the hormone is different. Men are treated for low testosterone, again starting with labs. Both are covered on our hormone therapy page.
Book a consultation in Montville
If you think perimenopause might be behind how you have been feeling, call Montville MedSpa & Pain Center at (973) 794-3958. We are at 624 Main Rd in Towaco, Montville Township, and your first step is a consultation and lab work with Dr. D’Alessio, so the plan is built on your own numbers.

