To early to blood test?

Riley
I work for a doctor and can blood test whenever I want at work. AF due on 5/3 and I'm supposed to get a blood test on the 26th just for a check up. I wasn't gonna test until the 28th with an at home ept.. But since I'm gonna get blood on the 26th which will be 13 DPO should I just blood test for hcg levels? What would you do?