June 24 i took the plan b pill, had my period on june 30, now is july 4 and my period ended yesterday i still have extreme bloating and slight nausea?

Pregnancy test: If you took Plan B on June 24, then I am guessing you had unprotected sex somewhere between June 20-24. If you got your period on June 30, then you probably had unprotected sex a few days after you ovulated. So, pregnancy is not likely since the egg only lives 12-24 hours after ovulation. However, if you are concerned, you should take a pregnancy test now and again in a couple weeks.