Starting to go crazy please give advice!

So short backround.... Been trying two years hubby have high abnormal morphology but a really high sperm count. Had a miscarriage in August 2014 at 6 wks. Ovulated on Feb 13-14. Have had very minimal light brown spotting mainly only when wipe yesterday and today. Today it almost seems like it might be tapering off. I am supposed to get my period on Sunday. Breasts are a little tender but nothing crazy bad, been a little more tired, appetite has increased. Should I test tomorrow or wait another week. The waiting is killing me but I am not sure I can take another negative right now. Your advice would be much appreciated.