Implantation bleeding or pre period spotting?

Krista

My period is due either tomorrow or Sunday. I normally have a 26-27 day cycle. I normally don’t have any spotting prior to AF and I haven’t been cramping or having low back pain per usual either. I started seeing the spotting yesterday (12 days after we DTD). We use the pull out method and have been since I had my son 15 months ago. I was breastfeeding him until 13 months so my cycle is just now where it is back to normal. We DTD November 30th. I’m not 100% sure but I’m thinking I ovulated that day or within the next few days. I remember my CM still being heavy and like egg whites around that time. Could I be pregnant? Or is AF making an early debut?