17 DPO with BFN 😓

So, I’ve missed my entire period and I’ve been getting a lot of symptoms as of what I would think would be pregnancy symptoms but I’m still showing up negative. I’ve suffered two previous miscarriages so at this point I’m becoming extremely discouraged.. I just don’t know how to feel. Is it possible that I am pregnant and there’s just still not enough hgc to test positive. I honestly just need some reassurance to uplift my spirits.