I gave in today :-( please help.

I tested today I'm only 9dpo but was told that early first response can tell you 6 days before your missed period and my period is due in 5 days. I feel sick, my breasts have clearly got larger with lots of white pimples round my aerola. The test was negative, but I guess it's too early. Feeling sad really don't like this wait. Lost a baby 21/12/13 through ruptured ectopic so I am so nervous :-( when should I test again?