I am 53 days since my last period and have take 2 tests and both showed up negative. I was on birth control for about 8 years but got off of it a little over a year ago and my husband and I have been trying ever since. I do not feel nauteas. But sometimes my lower back aches and within the past couple days I started seeing a white discharge. Is it too early to take another test or should I just call my doctor? Please give me some advise and if I happen to not be pregnant, give me some tips and tricks I can try.?