Key takeaways
- Bleeding in pregnancy is common, especially in the first trimester (about 20–25% of women), and often harmless — but it is never something to ignore.
- Spotting is light pink or brown; heavy bleeding is bright red, may soak a pad, may contain clots, and is often painful.
- Causes differ by trimester — from implantation and miscarriage early on to placenta previa and abruption later.
- Go to hospital immediately for heavy bleeding, severe or one-sided pain, fainting, shoulder-tip pain, fever, passing clots/tissue, or reduced baby movements after 24 weeks.
- Bleeding is a symptom, not a diagnosis — early assessment protects both mother and baby.
Seeing blood during pregnancy is frightening, but it does not automatically mean something is wrong — light spotting can be harmless, and many women who bleed go on to have completely healthy pregnancies. What matters is that every episode of bleeding is checked by an obstetrician, promptly.
As a gynaecologist in Gurugram, bleeding is one of the most common reasons my pregnant patients call in a panic. This guide explains what's normal, what the causes are in each trimester, and the warning signs that mean you should be seen straight away.
Is bleeding during pregnancy normal?
Some bleeding is common, especially early on — around 20 to 25% of pregnant women experience bleeding in the first trimester. Not all bleeding indicates pregnancy loss, but every episode deserves medical evaluation to find the cause and confirm your baby is well.
What causes bleeding in each trimester?
The likely causes of bleeding change as your pregnancy progresses. Here is what we look for in each trimester.
What causes bleeding in early pregnancy?
In the first 12 weeks, bleeding is common and often harmless, but a few causes are serious and need to be ruled out quickly.
- Implantation bleeding — light spotting as the embryo settles into the womb
- Threatened miscarriage — bleeding while the pregnancy continues
- Miscarriage
- Ectopic pregnancy — a medical emergency
- Molar pregnancy (rare)
What causes bleeding between 13 and 26 weeks?
Mid-pregnancy bleeding is often related to the cervix, but placental causes must also be checked.
- Cervical polyps
- Cervical infection
- Increased cervical blood flow (sometimes after intercourse)
- Cervical insufficiency
- Placental problems
What causes bleeding after 27 weeks?
Late-pregnancy bleeding should always be treated as urgent, because the two main causes involve the placenta.
- Placenta previa — the placenta covers the cervix
- Placental abruption — the placenta separates from the womb early
- Blood-stained mucus (a 'show') as labour approaches
Spotting vs heavy bleeding: what's the difference?
Knowing the difference helps you judge how urgently to act, though both should be reported.
- Spotting is usually light pink or brown discharge, a few drops, with no pain.
- Heavy bleeding is bright red, may soak a pad, may contain clots, and is often associated with pain — this needs urgent care.