Dull achy feeling like AF

Melissa
Hello ladies,
   Just need your opinions please. I am 7dpo today and I legitimately feeling like my period is coming. Having dullness in my lower abdomen and abit of rectal pressure I get with AF. However AF isn't due for another 6 days😳. There is no spotting but I'm also having lower back pain which I don't usually get before AF. Was really hoping this cycle was it but I'm beyond worried at this point. Previous cycles I would get light cramps and dullness around this time but these feelings are a lot more intense. 
    Let me know what you ladies think. Did you also feel like your period was coming but got a BFP in the end? Thanks 🙏🏼