Feeling insecure

I’m only 10 dpo. Last night I got a faint positive in FRER and this morning a tiny bit darker result, but still faint. This afternoon, I was going crazy so I went out and bought a ClearBlue Digital. Sure enough, it says pregnant. I want to believe it, but it’s just so early! I’m still several days out from my projected AF. I have been feeling crampy alllllll day which my friends say is normal, but feels remarkably similar to impeding AF. I just want to celebrate, why can’t I let myself believe it?!