Still hope??

My bf and I have sex all during my fertile week....we’re TTC....this will be my second pregnancy....I tested at 9 dpo and got BFN and again this morning at 12 dpo with another BFN...I’ve had a few symptoms but no implantation bleeding, only a few mild twinges in my uterus, a weird sensation in my breasts (not really painful and mostly in the nipple area), and a faint metallic taste in my mouth but not too bad. AF is supposed to come in 2 days but is it possible that I could still be preggo and I just tested too early??