Both last month and this month I started spotting at 5 DPO. My cycles are not all that regular. One month I had a 35 day cycle and ovulated cd 21 and one day I had a 28 day cycle and ovulated cd 17. I went to my obgyn and she didn't seem concerned. I am worried that I won't be able to get pregnant with this spotting. Anyone have any ideas about what could be causing it or if it will prevent me from getting pregnant?