i had the same thing, and i went to the doctors, they checked to see if everything was ok and everything was.
they told me sometimes women get some light bleeding or spotting at the beginning of the pregnancy while the embryo is implanting itself to the uterus wall.
but you really need to stop worrying and relax, the beginning of the pregnancy is the most important. i know its hard, but just relax on the couch, have some water, fruit, maybe a little chocolate and watch a movie and ask your boyfriend or husband to rub your feet.
everything will be fine, just dont worry because sometimes the stress can do weird things to our body.
if you still feel that something is not right, go back and see your doctor.

i had the same thing like i said, at the beginning too and now i have a happy and wonderful 5 month old son.

if you need to talk you can PM me anytime.