Creator: Dr. Devang Patel
Published: 2026-09-13

Seeing blood when you are newly pregnant is frightening, and the first thought is almost always miscarriage. Bleeding in the first 12 weeks is common - roughly one in four women experience some spotting or bleeding - and around half of them go on to have a normal pregnancy. Bleeding should always be checked, but the cause is often harmless. A few causes, such as an ectopic pregnancy, need urgent treatment, and knowing the warning signs can be life-saving.

Common causes of early bleeding

Implantation bleeding: light spotting around the time the period was due, as the embryo attaches to the uterus
Cervical changes: the cervix is softer and has more blood supply in pregnancy, so it may bleed after intercourse or an internal examination
Subchorionic haematoma: a small collection of blood between the pregnancy sac and the uterine wall, which often resolves on its own
Infection of the vagina or cervix
Threatened miscarriage: bleeding with a pregnancy that is still continuing normally
Miscarriage: loss of the pregnancy, often with cramping and passing of tissue
Ectopic pregnancy: a pregnancy growing outside the uterus, most often in a fallopian tube
Molar pregnancy: a rare abnormal growth of placental tissue

Warning signs that need emergency care

Go to the hospital immediately if you have heavy bleeding that soaks a pad in an hour, severe pain on one side of the abdomen, pain in the tip of the shoulder, dizziness or fainting, a fast heartbeat, fever with bleeding, or foul-smelling discharge. These may indicate an ectopic pregnancy, significant blood loss or infection.

An ectopic pregnancy can rupture and cause internal bleeding, sometimes with very little vaginal bleeding. Women with a previous ectopic, tubal surgery, pelvic infection, an IUCD in place, or pregnancy after IVF are at higher risk and should have an early scan.

What tests are done

The aim is to answer three questions: is the pregnancy inside the uterus, is it continuing, and is the mother safe? The usual tests are:

A transvaginal ultrasound, which gives the clearest view in early pregnancy and is safe for the baby
Serum beta-hCG, the pregnancy hormone; in an early pregnancy that cannot yet be seen on scan, two values 48 hours apart show whether it is rising as expected
Blood group and Rh type - if you are Rh negative, an anti-D injection may be needed to protect future pregnancies
Haemoglobin, and sometimes progesterone or thyroid tests
A speculum examination to check the cervix and the amount of bleeding

Sometimes the scan is too early to give a clear answer - the sac may be seen without a heartbeat yet, or no pregnancy may be seen at all. This is called a pregnancy of uncertain viability or of unknown location. It does not mean the pregnancy has failed. A repeat scan in 7 to 14 days, with hormone levels, usually clarifies the situation.

Pre-natal sex determination is prohibited under the PCPNDT Act. The sex of the baby is not detected or disclosed at any scan.

If it is a threatened miscarriage

If the scan shows a pregnancy with a heartbeat inside the uterus, the outlook is generally good, and most bleeding settles. Strict bed rest has not been shown to prevent miscarriage, but avoiding heavy lifting and strenuous activity while bleeding is reasonable. For women who are bleeding and have had a previous miscarriage, progesterone may be advised, in line with NICE and RCOG guidance. Avoid intercourse until the bleeding has stopped, and use pads rather than tampons.

A subchorionic haematoma seen on the scan is usually followed with a repeat ultrasound in two to three weeks. Small haematomas commonly shrink and disappear. Brown discharge for some days afterwards is often old blood clearing and is not, by itself, a sign of a new problem. Keep taking folic acid and any other medicines you have been prescribed unless told otherwise.

If it is a miscarriage

Most early miscarriages happen because of a chromosomal problem in the pregnancy, which is nothing the mother did or could have prevented. Work, travel, exercise, intercourse, a fall or eating papaya do not cause early miscarriage. Depending on the situation, options include:

Waiting for the pregnancy tissue to pass naturally, with follow-up
Medicines to help the uterus empty
A short procedure (suction evacuation) under anaesthesia

All three are safe options in most cases, and the choice is made with you. Emotional recovery can take longer than physical recovery. Most women who have one miscarriage go on to have a healthy pregnancy; if you have had two or more, further tests are worth discussing.

If an ectopic pregnancy is diagnosed, treatment depends on its size, the hormone level and whether there is internal bleeding. A small, stable ectopic may be treated with an injection of methotrexate and careful follow-up of hormone levels. A larger one, or one that has ruptured, needs surgery, usually by laparoscopy. Early diagnosis makes it more likely that the tube can be treated without an emergency operation.

Bleeding later in pregnancy

Bleeding after 20 weeks has different causes, including a low-lying placenta (placenta praevia) and placental separation (abruption). Any bleeding in the second half of pregnancy should be checked the same day at the hospital, not at home.

When to see a doctor

Any bleeding in pregnancy deserves a call. Come in urgently with the warning signs listed above; with light spotting and no pain, an appointment within a day or two is usually appropriate. If you have a history of ectopic pregnancy, miscarriage or IVF, request an early scan at 6 to 7 weeks. Divine Women’s Hospital, Gota offers emergency gynaecology and obstetric care 24 × 7, and Dr. Devang Patel’s team can arrange an early pregnancy scan and blood tests on the same visit.

More patient guides

This guide is general information for patients and does not replace a consultation with your own doctor.

Bleeding in early pregnancy: common causes and when to worry