Are these signs of pregnancy??

So I'm 12DPO and AF is two days late. I've been bloated with cramps and lower back pain like I normally would before AF but no signs of it starting. Begging of the week my CM was thick and white like lotion. And a lot of it. No smell so I know it's not an infection. And today I noticed my CM had a slight yellowish tint to it. I did take a test yesterday and it was a BFN. Should I try testing again soon since I'm already two days late for AF or am I just getting my hopes up?