If they are little hairs then they must be from the transplant. I didn't start losing many that soon though on my first hair transplant, it started maybe 2 1/2 weeks in and by a month almost all gone. I just had a second hair transplant yesterday so am 10 days behind you. The scabs though should have washed off by now, when I took the first good shower where I could run strong water on my scalp it took three showers to get rid of those the first time, so about 9 to 10 days in. If a few small hairs come with it I would think they may be just falling early from shock.
At 10 days in you have done all you can to keep the new transplant safe, you can wash normally and let them have to handle shampoo and all the rest. It will take maybe two months to see any new hairs, maybe even up to 3 1/2 months. in 5 months you can get 1/2 inch of new hair and see if it has taken well.