Implantation bleeding or too early?

Hi ladies,

I had bleeding for the first time this morning at a time when it shouldn't happen... or does it?
I stopped the pill at the end of February and have had very irregular periods since then (first time June 14, second time July 30, and then nothing). On October 10, I had a transvaginal ultrasound to see if everything looked okay inside. The doctor told me everything looked good and that my egg was 10 mm at that time. She explained that the egg usually ruptures (ovulates) around 21 mm, so that could be a guideline. My boyfriend and I decided to try for a baby then. Now this morning I had some bleeding. I don't know yet if it will continue, but I'm noticing my nerves are getting pretty high.
Could it be implantation bleeding? My skin has gotten really bad this past week on my face and above my breasts. I've never had that with a period before. But, I don't want to get too much hope either...
Does anyone else feel the same way or has experienced this?
Love, Mimi