Bleeding:
Bleeding that starts and stops and starts and stops is often a
sign that your hormone levels are falling. While you may still be
okay, you need to have your blood hCG pregnancy hormone levels
monitored. Heavy bleeding that soaks a pad in an hour is a sign
that a miscarriage may be beginning. See the sections on "definite
signs" for more information on what to do. Keep in mind
that while bleeding is always scary, 70% of all pregnancies have
bleeding at some point. Both of my normal pregnancies had
bleeding, heavy and red. And the one I lost at 20 weeks never even
spotted.
Cramping:
You are going to feel a lot of random cramping down there the
whole pregnancy. The only time cramping is a concern is if you are
breathing in a labor-like huff, or if you also begin bleeding with
the cramps.
Loss of pregnancy symptoms: This
is a question I get all the time. While the complete and sudden
loss of pregnancy symptoms can signal a pending miscarriage,
usually it is not the first sign. You will have many days where
you don't feel pregnant, when the nausea abates for a day or two,
or your breasts are less sore. This is expected and not a concern
at all. Around weeks 10 to 14, this is completely normal, as your
hormone levels even out and the placenta takes over. The loss of
pregnancy symptoms during a miscarriage is usually something you see in hindsight, not
ahead of time.
A pregnancy test that is positive, then
negative: This is a classic sign of an ectopic. Often you
may also see spotting. If you have taken a pregnancy test that is
positive, then another one a few days later that is negative,
alert your doctor immediately. You want to rule out an ectopic or
take care of it before you have to go the surgical route. If you
are taking the tests in the same day, though, you might be right
on the edge of a positive result, and urine later in the day may
not be concentrated enough to keep the test positive. Test again
the next morning to be sure.