Quoting BebéHaceTres:" I found out I was pregnant at about 3 weeks and 5 days, now I'm 5 weeks, 1 day. My only symptoms really ... [snip!] ... that I'm a bit hungrier than usual and a bit sleepier than usual. But I don't know if I can count that as a pregnancy symptom."
i have personally experienced 2 miscarriages. either you will pass it naturally, with bleeding and cramping, or the dr will do a D&C to take everything out. since you havent had any bleeding i think it is safe to say you have not miscarried. i would say your boobs are just getting used to the hormone level for now ^.^ however if you do experience bleeding, see your obgyn immediately, just to be safe lol