Feeling bummed

My AF was supposed to start Friday and took a HPT Friday night, Sunday and last night and all a BFN. I had all the symptoms, really sore boobs, lower back pain and lower abdominal cramps (kept feeling like I was about to start) and white/clear discharge. And Monday night I had very faint brownish/red spotting when I wiped and this morning also. I don't know what to do, been TTC a little over 5mnths.