When i was preg w/ 2nd baby I had same thing, had period then 2 weeks later had a light "period", my dr. said (and he said it was not medically proven, just his theory) that sometimes there's spotting/period when egg implants and the placenta begins to form. He also said that some women will seem to have another small period at about 6-8 weeks when the placenta, which starts out bigger than needed, will "regulate" its size. Since it's such a vascular thing, the only place for it to go is out, giving appearance of bleeding. I thought I was miscarrying when that happened, but went full term and had a healthy baby girl. I, like you, don't like to waste the $ on PTs, and unless you start feeling pain or other strange symptoms, just wait a while to see what happens! :) Good Luck to you!