Need help with line progression

J

Currently in the tww after my fresh 5 day embryo transfer. I’ve tested out the trigger at 5dp5dt. Started getting positives on 6dp5dt. Just not seeing much progression between 6dp5dt and 8dp5dt. Am I being too impatient with the cheap tests. I have a picture of the cheapies and FRER and Clear Blue. Just thought the cheapies would be darker at 8dp5dt and worried that with what appears to be little progression that it will be a chemical pregnancy.