I'll be 7 weeks tomorrow and yesterday I had some very very very light brownish spotting when I wiped. It only lasted about an hour or so, no bad cramps. Called my Dr this morning and they suggested maybe it was implantation bleeding...but I'm 7 weeks, how could that possibly be implantation bleeding? Either way they told me to take it easy until my 8 week appointment next Thursday. Any advice to calm a worried pregnant lady? Anyone else have this happen?