Had unprotected sex after 1st pill of Plan B(emergency contraception), 2nd pill due after 10hrs. Do I need to take the whole of Plan B again or just the 2nd pill s enough?

I'm sorry but what on earth were you thinking having unprotected sex AGAIN after taking the first pill.

Plan B really messes with your body an it should NOT be used as a form of contraception.

I would be consulting your doctor to find out if it is safe to take it again straight away.