HELP can't tell if pregnant

Bailee • Lover of all things Travel, animal and food related. Boho spirit. VERY ACTIVE SEX LIFE. Keeping track of Aunt Flo🦀
I took a pregnancy test on Tuesday January 6th, and it was negative. And I also took another test on Friday January 8th, which was also negative... 
My boobs hurt like crazy, and I am supposed to start my period today or tomorrow. I've had very faint cramping, heart burn and backaches and mood swings. 
Is there ANY chance I could be pregnant? 
I had a miscarriage in February of 2015, and it tore me apart. I really want this one to stick...