Progesterone testing

Nicole
I spotted from 3 DPO until my period this cycle. I had a chemical pregnancy 2 months ago. I'm so nervous. I have to wait until I ovulate to test. I asked if I'm low will I just be given progesterone. The nurse said no I will be given progesterone when I get a BFP....🤔🤔🤔🤔 if I need progesterone for implantation how does that make sense again?