Okay, so:
I started taking birth control pills almost two weeks ago (Jan 26th).
I took the first pill 3 days before I expected my period (even though you're supposed to start on your period)
I was late taking 2 pills that week, not consecutively, but I DID take them.
My boyfriend & I have had sex w/o a condom only twice, both this week.
I recently started spotting/ having a light period during the past 3 days.. some cramping, nothing horrible.

How greatly am I at risk of gettting pregnant? Did I really screw up?

I've been trying to get a lot of information on my birth control and the schedules and everything, but I'm still stressed about it..
Any thoughts, comments, experience, would be GREAT.
Thanks :]