In short
Miscarriage, the loss of a pregnancy before 20 weeks, is common and usually not caused by anything the pregnant person did or didn't do.
Emergency if: Bleeding that soaks through protection every hour, or bleeding with fever or feeling faint — call emergency services or go to the ER now.
On your report
Beta-hCG (Non-Pregnancy / Tumor Marker Use), Hemoglobin
On this page
01
How Common It Is
Miscarriage, the loss of a pregnancy before 20 weeks, is one of the most common pregnancy complications, and a large share of known pregnancies end this way, most often in the first trimester. The true rate is even higher when very early losses that happen before a person knows they're pregnant are included.
The most common cause is a random chromosomal abnormality in the developing embryo that isn't compatible with continued development — something that happens by chance and isn't caused by exercise, stress, sex, or most everyday activities during pregnancy.
02
Signs to Watch For
Vaginal bleeding, ranging from light spotting to heavier flow, and cramping are the most common signs, though light spotting in early pregnancy is also common and doesn't always mean a miscarriage is happening. Passing tissue, or a sudden decrease in pregnancy symptoms after weeks of feeling pregnant, can also be signs. Because early-pregnancy bleeding and pain can also be the first sign of an ectopic pregnancy — a pregnancy growing outside the uterus that can become an emergency — any bleeding or pain with a positive pregnancy test is worth having checked rather than assumed to be a miscarriage.
Heavy bleeding that soaks through protection every hour, or bleeding along with fever or feeling faint, needs immediate emergency care rather than a routine appointment — fever can signal an infection alongside the miscarriage, and feeling faint can mean blood loss significant enough to need treatment right away. Severe pain that isn't controlled by usual pain relievers also deserves prompt medical evaluation.
03
How It's Confirmed
Ultrasound is the main tool, checking for a heartbeat and confirming whether the pregnancy is continuing, has already ended, or is uncertain and needs a repeat scan. Blood tests for hCG, sometimes repeated over several days, help clarify an uncertain ultrasound, since hCG that's falling rather than rising as expected supports a miscarriage diagnosis.
Sometimes results are inconclusive on the first visit, and a follow-up scan or blood test after several days to a week gives a clearer answer rather than rushing to a conclusion from a single data point.
04
What Happens Next
Once a miscarriage is confirmed, there are generally three paths: waiting for the body to pass the tissue on its own, taking medication to help it happen, or a minor procedure to remove the remaining tissue. All three are medically reasonable options, and the choice usually comes down to personal preference, how far along the pregnancy was, and whether there's bleeding or infection that needs faster resolution.
Rh-negative blood type sometimes requires a shot of Rh immune globulin after a miscarriage to prevent complications in future pregnancies, so blood type is typically checked as part of the workup.
05
Recovery and Trying Again
Physical recovery from an early miscarriage usually takes one to two weeks, though periods typically return within four to six weeks. Emotional recovery has no fixed timeline, and grief after a miscarriage is a normal, valid response regardless of how early it happened.
Most people who miscarry go on to have a successful pregnancy afterward, and many doctors say it's medically fine to try again once physically ready, though some prefer to wait for one normal cycle. Two or more consecutive miscarriages is the point at which doctors typically start looking for an underlying cause.
How urgent is it?
Routine — see a doctor
Light spotting in early pregnancy with no other symptoms — common, and worth mentioning at your next prenatal visit rather than assuming the worst.
Same-day — call promptly
Bleeding or cramping alongside a positive pregnancy test — get checked so a miscarriage can be told apart from an ectopic pregnancy.
Emergency — act now
Bleeding that soaks through protection every hour, or bleeding with fever or feeling faint — call emergency services or go to the ER now.
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Sources
- Miscarriagemedlineplus.gov
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