We had the clear from 4 weeks, we did it at 3.5 weeks, it was good but not great, surely not what I had been waiting excitedly for. We did it again last night, only needed a tiny bit of lube and it was MUCH better!
For those still waiting, the first couple times aren't nearly as good as you are imagining, BUT it will get better, and it is nice to not have a beach ball in your tummy.
Also my new best friend is the "BabyDoll" lingerie