Seeing blood in early pregnancy can be frightening. But bleeding in the first few weeks is common, and it does not always mean something is wrong — many women who bleed early on go on to have a healthy pregnancy and baby.1 This guide explains the common causes, the signs to watch for, and when to seek help.

What causes bleeding in early pregnancy?

Light bleeding or spotting in the first trimester often has a harmless cause, such as:

  • Implantation bleeding — a little spotting as the pregnancy settles into the wall of the womb, often around the time your period would have been due.
  • Changes to the cervix — pregnancy hormones increase the blood supply to the cervix (the neck of the womb), so it can bleed a little, sometimes after sex.
  • A subchorionic haematoma — a small collection of blood next to the pregnancy sac, usually seen on a scan, which most often settles on its own.

Whatever the cause, it is always best to have any bleeding in pregnancy checked, so that you and your baby can be looked after properly.1

Could it be a miscarriage?

Sadly, miscarriage is common: in the first three months, around 1 in 5 women will have a miscarriage, usually for no clear reason.1 Most happen because the pregnancy was not developing as it should — and, importantly, it is almost never caused by anything you did.2

Contact your doctor promptly if you notice:

  • Heavy bleeding, especially with clots or tissue
  • Strong cramping or tummy pain
  • Persistent low back pain
  • A sudden loss of your pregnancy symptoms (such as breast tenderness or nausea)

Warning signs that need urgent, same-day help

More rarely, bleeding can be a sign of an ectopic pregnancy — a pregnancy growing outside the womb — which needs urgent treatment. Seek medical help straight away, the same day, if you have:

  • Severe tummy pain, especially on one side
  • Pain at the tip of your shoulder
  • Feeling faint, dizzy, or collapsing

You can learn more in our guide to ectopic pregnancy.

What to expect when you see us

If you have bleeding, your doctor will usually arrange an ultrasound scan to check on your pregnancy, and sometimes a blood test (beta-hCG) that may be repeated after a couple of days to see how the pregnancy hormone is changing.3 These tests help find the cause and check that everything is where it should be.

If you have bleeding and have had a miscarriage before, there is a treatment (micronised progesterone) that may lower the chance of another one — ask your doctor whether it is right for you.3

If a miscarriage is confirmed

If tests confirm a miscarriage, there are usually a few ways it can be managed: waiting for it to complete naturally, taking medicine to help it along, or having a small procedure. Your doctor will talk you through the option that suits you best.3

A miscarriage can be heartbreaking, and whatever you feel is natural. You do not have to go through it alone — please ask us about the support and counselling available to you.

The takeaway

Bleeding in early pregnancy is common and often harmless, but it should always be checked. Know the warning signs, trust your instincts, and never hesitate to get in touch. At Sugabi Clinic, we are here to support you at every step.

References

  1. Royal College of Obstetricians and Gynaecologists. Bleeding and/or pain in early pregnancy [Internet]. London: RCOG; [cited 2026 Jul 21]. Available from: https://www.rcog.org.uk/for-the-public/browse-our-patient-information/bleeding-andor-pain-in-early-pregnancy/
  2. NHS. Miscarriage [Internet]. London: NHS; [cited 2026 Jul 21]. Available from: https://www.nhs.uk/conditions/miscarriage/
  3. National Institute for Health and Care Excellence. Ectopic pregnancy and miscarriage: diagnosis and initial management (NG126) [Internet]. London: NICE; 2019 [updated 2023; cited 2026 Jul 21]. Available from: https://www.nice.org.uk/guidance/ng126