12 days post-op. After pulling out blood clotting with cotton I can see new hair grafts pull out. Is this normal? (photo)

If you are concerned please follow up with your doctor for an exam.
You will have hair loss after surgery. You may have graft loss after surgery. Not all the grafts will take.

After two weeks of the procedure, noticing hair loss on new hairs is usual as your new hairs are changing the phase, which we call it the dormant phase.
It may be very normal, but it is not so easy to comment further by looking at the current photo you uploaded as it is dark and not a close shot.
I recommend you to contact your clinic.

It is not possible to tell anything from your image. In a situation such as this you need to be talking directly with the Doctor and Clinic that performed your hair transplant. The first few days the graft can be easily removed if caught on a foreign object. Care needs to be taken not to damage the grafted area. So, speak with your Doctor without delay.