Idk when to test

Alexandra • Sat, Sep 07 • boy mama ❤ FL grown Military wife Ttc #3

I dont know how many dpo I am but my period is 6 days away. Got a negative this morning but my boobs are on fire , my hair is soo greasy took a shower yesterday after noon and it was greasy a few hours later. My moods arent normal .

Is there a chance I just tested to early?