Spotting before your period

Hello,

My fiancé and I have been trying to conceive since January. I am 31 trying to conceive baby #1. I have pcos and the last few months my period has started a day or two before it was supposed too. However, I had about 2.5 days of spotting or very light bleeding that was only present when wiping. This started about 7-8 days before my period is due to start. I am due to start on the 5th. I have read online that you can have a day or two of spotting with the embryo implanting. Has anyone else had this and has been pregnant? Or am I just having a odd period with the pcos?