Help!

Hello !! I hope you are doing well . I'm looking for some insight or advice . Today is July 8th,2017 and I've been cramping and having back pain since July 4th,2017 . My period isn't due until next weekend July 15th,2017. Never before have I experienced this,usually I get cramps on the first day of my period. These of course aren't as painful as my period cramps. Also I thought that I was bleeding because I felt leakage ,so I went to check it out and it was white creamy discharge. Ive done research and of course Google always points to pregnancy but for some reason I'm having a hard time believing it . Is there anyone else that have had these same symptoms? And is it too early to take a test ? Thanks in advance for your advice and feedback!!!