Minsan 2 months wala, minsan baha? Irregular periods in perimenopause

Your ovaries do not switch off in one go. In perimenopause, ovulation becomes unpredictable. Some months you ovulate early, some late, some not at all. Without regular ovulation, the hormones that time your regla fall out of rhythm.

In the early stage, many women notice cycles that vary by a week or more from month to month. Later, gaps of two months or longer become common. Doctors use the STRAW+10 staging system to describe these stages: in the early transition, cycle length keeps differing by 7 days or more, and in the late transition gaps of 60 days or more appear (Harlow et al. 2012). Menopause itself is confirmed after 12 months in a row with no period (UP Manila 2025).

Filipinas on Reddit describe "less period days, minsan 2 months wala" and heavy flow even while still regular. A folk rule says peri only starts once you have been irregular for a year. That is not quite right: perimenopause can begin while cycles are still regular but shorter.

Perimenopause lasts about four years on average, and can last up to about eight (Cleveland Clinic).

Irregular bleeding has many causes besides perimenopause. Your doctor may want to rule out:

• Pregnancy. Yes, even at 47. Without hormonal contraception, you count as possibly fertile for 2 years after your last period if you are under 50, and 1 year if you are 50 or over (FSRH guidance, NHS summary). A home test is cheap and quick. For contraception options in your 40s, see birthcontrolphilippines.com.
• Thyroid problems. Both under- and overactive thyroid can change your cycle. A TSH test costs ₱490 per test (Exact Check). See Perimenopause or thyroid?.
• PCOS. Irregular cycles from PCOS can blur into perimenopause. If you have had PCOS, pcosphilippines.com covers PCOS after 40.
• Fibroids and polyps. Fibroids are common before menopause and often cause heavy periods (NHS). Polyps in the womb lining can cause heavy bleeding or spotting between periods (StatPearls).
• Anemia from heavy bleeding. Not a cause but a result: tiredness, breathlessness and brain fog.
• Medicines. Blood thinners, some hormonal contraceptives and some antidepressants can change bleeding.
• Stress, big weight change, intense exercise.
• Cancer of the womb lining or cervix. Less common, but the reason abnormal bleeding should be checked, especially over 45.

A transvaginal ultrasound is the usual first scan: ₱1,500 per scan (Exact Check). Hormone blood tests like FSH swing a lot in perimenopause and are often not needed after 45 (NICE NG23). Prices checked October 2026.

• Tracking your cycle: Some evidence as a practical first step. Note start dates, how heavy (pads per day, flooding, clots) and any spotting. The period tracker does this on your phone and shows your 12-month countdown. Doctors find this far more useful than "irregular po".
• Getting heavy bleeding checked and treated: Strong evidence. Heavy bleeding has effective treatments. Options the NHS lists include a hormonal IUD (IUS), the combined pill, and non-hormonal medicines taken during the period such as tranexamic acid or mefenamic acid. Fibroids or polyps can be treated if they are found (NHS).
• HRT once periods are erratic and symptoms are bothering you: Strong evidence for hot flashes and night sweats. HRT can be started in perimenopause. A progestogen is added if you still have a uterus, often in a cyclic pattern that gives a more predictable bleed. Read HRT for menopause. Micronized progesterone is From ₱85.75 per capsule and dydrogesterone From ₱92.25 per tablet, both Rx only. Monthly totals are on costs.
• Contraception while you still need it: Strong evidence. Some methods also help heavy or irregular bleeding. See birthcontrolphilippines.com.
• Supplements for "balancing" periods: Not enough evidence. See our honest supplement guide.

Non-hormonal choices for other symptoms are in non-hormonal treatments. Prices checked October 2026.

• Any bleeding 12 months or more after your last period, even light spotting, even once. Read bleeding after menopause.
• Very heavy bleeding: needing to change a pad or tampon every 1 to 2 hours, flooding, or clots bigger than about 2.5 cm (NHS)
• Bleeding between periods that keeps happening, or bleeding after sex
• Periods lasting much longer than usual
• Feeling faint, breathless or very tired (possible anemia)
• A positive pregnancy test with pain or bleeding

PGH OB-GYN faculty stressed checking abnormal bleeding to rule out cancer in women over 45 (UP Manila 2025). Find a menopause-literate doctor or start with the symptom checker.