How early do you start testing?

Cheryl

I am only 5 DPO but I am going crazy. I swear I can feel it. My boobs are a little sore, I'm exhausted, I have to pee every 20 minutes & I was crazy nauseous yesterday. I had a twin miscarriage in September, we just started trying again last cycle & it didn't happen then and I just so badly want it this time. I'm going to be 35 this year & we've tried on & off for 8 years & I'm starting to feel desperate.