Please help !!!!!! I rally bed advice

Kasia
I gone through without my usual strong pms symptoms this month . Took test swi days ago Ans was faint line on it, took one day after Ans today on missed AF day and negative too.
I have sore boobs a smile cramping . 
But still no show of  period . 
Is there any chance I could be pregnant ??? 
Has anyone had sinnilae experience before bfp ???;((