Can Someone Help Me Please Thankks

hi My Name Is Paola I Havee Been Feeling Sick Nauseas For The Past Week My Boobs Are Sore and have Back Pains But Af Is Not Due 2 & Half Weeks From Now. Ive Never Experience This I Usually Get Sore Boobs 2 or 3 Days before Af I Have Also Started Exercising 2 Months Ago. But 4 Or 5 Days I Have Been Getting Tierd More Quickly And They Are Exercises That I Would Always Do. Yesterday I Did My Exercises Routine & I Started Feeling Sharp Pains In My Lower Stomach . Could I Be Pregnant ??

thanks in advance ♥ ♥♥