1st IVF - Discharge and Negative HPT ( 2WW)



I’m very worried and do not know what to think. I’m on 9dpt5dt ( 1 embryo transfer) and been having brown muscus like discharge for the past 3 days, i have taken 2 HPT and both have come up negative. I have my beta tomorrow and I’m just heart broken that is just not going to happen. Has anyone have a similar situation and gotten good news? or should i prepare for the worst?