Pregnancy Glow: What It Is and Why It Happens

The idea of a pregnancy glow is one of the most talked-about beauty side effects of pregnancy - and it can leave you wondering if it is real, or just a myth.

For many people, it is a genuine physiological change, linked to shifts in circulation and hormones. But it is not guaranteed: plenty of pregnant people notice different pregnancy skin changes instead, like acne or pigmentation, and that is equally common and normal.

In this guide, we explain what is pregnancy glow, the causes behind a glow during pregnancy, when it may start, and what you can do if your skin is reacting differently.

This article is for informational purposes only and does not replace professional medical advice. If you have any concerns about skin changes during pregnancy, speak to your GP or midwife.

What Is Pregnancy Glow?

Pregnancy glow refers to a brighter, flushed, or more radiant complexion that some people experience during pregnancy. It may show up as rosy cheeks and a gentle sheen, with skin that can look smoother or more hydrated than usual.

What is pregnancy glow really down to? Most often, it comes from increased blood flow and hormonal changes that can boost oil production in the skin - not from emotional happiness alone, even if feeling well can add to your overall sense of wellbeing. You might also notice subtle changes like a slightly “plumper” look or a more even tone.

It also varies widely. For some, the same hormone shifts that support pregnancy can create a dewy look; for others, they can lead to oily skin, breakouts, sensitivity, or pigmentation changes. So when people ask, is pregnancy glow real, the best answer is: yes for many - but it is not universal, and non-glow skin changes are completely normal. Importantly, it is not a measure of how healthy your pregnancy is.

What Causes the Pregnancy Glow?

The causes of pregnancy glow are mainly physical: your body increases circulation and hormone levels to support your baby. That is why do pregnant women glow can have a science-based explanation - even though the visible result can differ based on skin type, genetics, and existing sensitivity.

Increased Blood Volume

During pregnancy, blood volume rises by about 50% to help supply the placenta and growing baby. This extra blood can widen small blood vessels close to the skin, making the face look warmer, brighter, or more flushed - a commonly cited mechanism behind a glow during pregnancy. The circulation change is not “cosmetic”; it is a normal adaptation to pregnancy, with the skin effect as a side benefit.

Hormonal Changes and Increased Oil Production

Key pregnancy hormones - oestrogen, progesterone, and hCG - can stimulate sebaceous (oil) glands to produce more sebum. A small increase may give skin a shinier, luminous look. But if oil production is higher, pores can clog and pregnancy acne can flare, so the same hormones that help create glow can also trigger breakouts. For a deeper look at pregnancy hormones, see the Pampers guide.

Skin Hydration and Elasticity

Hormones may also influence how well skin holds on to moisture, which can make it look plumper and smoother. As your bump grows, skin stretching can add to a taut, luminous appearance in later trimesters. It is fine to acknowledge that rest and feeling well can affect how your skin looks day to day - but the core drivers are physiological, not simply an “emotional glow”. These shifts are common, and they often settle after birth.

When Does Pregnancy Glow Start - and How Long Does It Last?

If you are searching when does pregnancy glow start, the honest answer is: there is no fixed timetable. Skin changes depend on your hormones, your skin type, and how your body responds to pregnancy overall. Some people never notice a clear change, and that can be normal too.

Many people notice early shifts in the first trimester - and if you’re still early on, it can help to review signs of pregnancy - when hormones rise quickly, which can mean anything from extra radiance to oiliness or breakouts. The phrase pregnancy glow second trimester is common because this is when many people feel more stable, morning sickness may ease, and blood volume continues to increase, which may make a glow during pregnancy more noticeable for some.

For most people, the underlying causes settle within weeks to a few months after birth as hormone levels return to their pre-pregnancy baseline. There is no “right” time to experience a glow - and if your skin changes look different from what you expected, that is normal too.

Is the Pregnancy Glow Real - or Just a Myth?

The pregnancy glow is real - in the sense that it has clear, physical causes such as increased blood flow and changes in oil (sebum) production. So if you are asking is pregnancy glow real, the evidence-backed answer is that many people do see a brighter or more flushed complexion during pregnancy.

What can feel misleading is the cultural expectation that everyone will glow. That idea is the pregnancy glow myth - not that the glow exists, but that it is universal. The same biological changes can create very different outcomes depending on skin type, genetics, and whether you are prone to oiliness or acne.

In reality, those same hormone and circulation shifts can also lead to pregnancy skin changes that feel like the opposite of glowing, including breakouts, dryness, pigmentation (melasma), or increased sensitivity. If your skin looks different from what you expected, that is normal, and it does not mean anything is wrong. If any change is worrying or distressing, speak to your GP or midwife.

What Other Skin Changes Happen During Pregnancy?

Not everyone gets a glow during pregnancy - and for many, the most noticeable part of pregnancy is a different set of pregnancy skin changes. The good news is that these shifts are common, usually temporary, and often driven by the same hormones and circulation changes behind the “glow”.

• Pregnancy acne: Hormone surges can overstimulate oil glands, leading to clogged pores and breakouts - particularly in the first trimester. This is common and often settles after birth.

• Melasma (chloasma / “mask of pregnancy”): Darker patches on the face (cheeks, forehead, upper lip) can develop due to increased melanin. Sun exposure can make it more noticeable, and it often fades after pregnancy.

• Linea nigra: Some people notice a darker vertical line on the abdomen, linked to increased melanin. Read more about linea nigra.

• Dry or sensitive skin: Hormonal fluctuations and skin stretching can cause dryness, tightness, or itchiness. If you are dealing with itching during pregnancy, check what may help and when to seek advice.

• Stretch marks: These are very common as the skin stretches to accommodate a growing bump. Learn more about stretch marks during pregnancy and why no cream is proven to prevent them.

• Spider veins: Tiny red blood vessels near the skin’s surface can appear as circulation increases. They are usually temporary.

Most of these changes are caused by the same hormonal and circulatory shifts behind the pregnancy glow. They are normal, common, and - in most cases - temporary. If any skin change is causing you concern, speak to your GP or midwife.

How Can You Support Your Skin During Pregnancy?

Whether you are seeing a pregnancy glow or dealing with other pregnancy skin changes, gentle routines can help keep skin comfortable. These are supportive ideas rather than “fixes” - and it is always best to check with your GP or midwife if you are unsure about a product or ingredient.

• Use gentle, fragrance-free cleansers and avoid harsh exfoliants or abrasive scrubs, which can irritate sensitive pregnancy skin.

• If your skin is oily or prone to breakouts, choose a non-comedogenic cleanser and a light, oil-free moisturiser.

• Wear SPF 30 or above daily. Pregnancy can increase sun sensitivity, and sun exposure may worsen pigmentation changes such as melasma.

• Moisturise regularly to help with dryness, itching, and stretch mark discomfort - while remembering that no cream is clinically proven to prevent stretch marks.

• Stay hydrated and aim for regular rest where you can, since overall wellbeing can influence how your skin looks day to day.

• Avoid retinoids (retinol, tretinoin), which are not considered safe in pregnancy. Ask your GP or midwife before trying any new active ingredient.

• If you are concerned about pregnancy acne or any persistent skin issue, speak to your GP or midwife before using medicated treatments, as some options are not suitable in pregnancy.

Always check with your GP or midwife before introducing new skincare products or ingredients during pregnancy.