Ya it can be hard to see movement in an egg that far along, sounds like it's still viable. Doesn't look internally pipped yet from pic. Temps must be running a little low just be patient and hopefully you will see a pip sooner than later.
:welcome What is your incubator temp and do you have a calibrated thermometer to check your temp sounds like it is low on temp if your egg is still viable/alive. Have you candled the egg to know it is really alive. If so, just be hopeful and patient.