Septate uterus /faint line


So i have a son - 17 months whom

I had no issues conceiving. Were on 6 months now and had a MC in October. I had a faint line Friday and yesterday and today all negative. Period is due Thursday. My eyes are playing tricks on me and i cant take it... i called my dr to have a blood test but then canceled it bc i just cant bare to feel stupid for going in praying it comes back positive. I feel desperate and its driving me insane. I was told years ago i have a septate uterus so im not sure if thats the issue but i am assuming thats why i had my MC so

im looking for any positive feed back to keep me going. As of now i just want to stop even trying. Hes my test from today.