You will almost certainly have access to GP appointments out of those hours either at your surgery, or at a nearby surgery where they will have access to your full record under extended hours. I can't imagine anywhere isn't providing this under the PCN DES, as we all jump at every crumb of funding these days, and to not do that becomes economically unviable. Ask if they can get you a Saturday morning slot elsewhere. I do Saturday mornings on a rota , and an extended hours sessions once weekly until 8pm. Give it a few months and it will have periods of being worse still, as I'd be stunned if industrial action isn't voted for in the upcoming ballot for GPs. The government have shafted us too long, and pay cuts over the last year, and I mean cuts, not just "real term cuts allowing for inflation", and risible funding rise offered this year is going to get 2 fingers up from most