4 doctors weighed in:
How common/what % spot during first trimester pregnancy? What are causes of spotting? 
4 doctors weighed in

Dr. Alan Patterson
Obstetrics & Gynecology
2 doctors agree
In brief: Not uncommon
It is not uncommon to spot in the first trimester. Your obgyn should have fully explained possible causes which are, possible loss of pregnancy, implantation bleed, subchorionic hematoma- which is a small blood clot.
Abnormalities of the cervix or friable cervix which can bleed after intercourse and other causes. You should get an ultrasound, i always do that in all of my patents.

In brief: Not uncommon
It is not uncommon to spot in the first trimester. Your obgyn should have fully explained possible causes which are, possible loss of pregnancy, implantation bleed, subchorionic hematoma- which is a small blood clot.
Abnormalities of the cervix or friable cervix which can bleed after intercourse and other causes. You should get an ultrasound, i always do that in all of my patents.
Dr. Alan Patterson
Dr. Alan Patterson
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2 doctors agree
In brief: Varies
Spotting from the uterus is usually from the placenta, but often this resolves on its own.
In some cases it can be a precursor to miscarriage, or a sign that a miscarriage is in process. Infection of the cervix such as chlamydia or gonnoreah can also causes spotting. Its a good idea to see your doctor if you have spotting, who can figure out what is going on.

In brief: Varies
Spotting from the uterus is usually from the placenta, but often this resolves on its own.
In some cases it can be a precursor to miscarriage, or a sign that a miscarriage is in process. Infection of the cervix such as chlamydia or gonnoreah can also causes spotting. Its a good idea to see your doctor if you have spotting, who can figure out what is going on.
Dr. Nicholas Fogelson
Dr. Nicholas Fogelson
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