Not sure right now

Hilary • Love is Sweet!
So just did our second round of Femara. Tested positive for ovulation about about two weeks ago. But had period like bleeding for almost five days right after my follicle study. Spoke to my doctor about this and she said we would just wait it out and see if I got my period or not. Currently 17dpo. So I tested at 15dpo and BFN. Been haveing spotting the past two days but nothing like the start of my period. I plan on calling the Drs office today just to get some input. What do you ladies think? Should I wait on calling the Dr and test again in a few days if my period dosnt start? I'm just worried that we may miss our chance for another medicated cycle if this is really my period. Andy advice or thoughts would be wonderful.