Can I test and which one?

Aoc264 • I`m 36 DH 44 this is my #6 time TTC, DH and I been trying since 10/1/2013 after a MC. I have three wonderful children.
Hello I am 8 or 9dpo I tested this morning DT test bfn! I'm sad! Is it still to early? What test should I use for early testing?