Could this be a sign of pregnancy?

Last Sunday 10/12 my SO and I had unprotected sex. The next day I started ovulating (per glow). Throughout my week of ovulation my CM was in between egg whites and creamy, and it was always a small amount. Typically it's like egg whites and there is a larger amount. Today I am no longer ovulating, and this morning I noticed my CM has a light brown tint to it and it's more of a creamy texture. My breasts are also a little sore, only when I press on them and I have noticed some minor cramps, not too bad though. The only thing throwing me off is the spotting because AF isn't due for another 12 days. Any thoughts?