This up and down in emotion is killing me

I thought this month would be my month. I was convinced I was going to be pregnant until I took a hpt at 9dpo. It was obviously negative because it was way to early to test. The next day I had implantation bleeding and I was hopeful again. One day later, today at 11dpo, I took another hpt and bfn again 😭😭😭

Now I feel like I'm out again.

I'll test again tomorrow and again if I miss my period. But for some reason, right now, my hope is completely vanished. Month 20 of TTC gone out the window 😩

Edit: I already have children and in the 20 month of TTC I did get pregnant 3 times but miscarried everytime.

With the other kids it only took 2-4 months to get pregnant just as with the three miscarriages. I just don't seem to be able to keep a pregnacy going.