TMB, Just a thought. When you take him out, do you get him to follow you or do you carry him? If you're carrying him, even for a large percentage of the trips, he won't be committing the route to memory.
To be honest, we spent most of our time going in and out, in and out, even when he didn't need to go last week so he learned the route to the toilet area.
Pip 12 weeks tomorrow and doing really well with his house training generally, but he squatted on the living room carpet earlier today. I just interrupted him as soon as he squatted, said a firm no and took him outside to where I wanted him to go. It took a few minutes, probably because he was a bit unsure after being interrupted by me, but then he started to look like he might, so I gave him the cue, he went and got lots praise and fuss for it.
Some pups just take a little longer to develop sufficient bladder control, others struggle to put together all the pieces of what they need to do ie, realise I feel like I need a wee, head towards back door, go outside, head to toilet area, do a wee. It's a lot for an 8 week old pup to take in, but just like potty training, even though different dcs do it at different ages, it will come with time.
Sally, it sounds like you are doing great.