Early Pregnancy signs, now AF signs...help

For the last two weeks I've had extremely sore boobs, aching back, and cramps. All typical AF signs but I usually only get them a day or two before AF not for an entire 2 weeks. I'm 16dpo. AF is 2 days late. And I keep getting BFN's. Also some creamy white discharge. Any chance I could be pregnant or is AF just being a bitch this month?!