Hello, thanks for your question today! I am Dr. Drew, and I am a licensed veterinarian. I'll be happy to help you in any way I can.
Thursday was 5 days ago,
so that means that Stanley is still in a critical healing period,
where the incision is surely not adequately healed yet.
If the incision is gaping open, then veterinary attention is surely necessary this morning.
If the incision is closed, but is leaking pinkish fluid (not blood), then monitoring closely for a few hours may be acceptable,
but if it appears to be pure blood, then I would definitely suggest a veterinary exam as soon as reasonably possible.
Many dogs, especially young Labradors, cannot be trusted without the cone in place, during the 7-10 days post-operatively.