When I was exceedingly fit and a lot younger (25-40 approx) I would ride six days a week and sometimes on my day off. I Usually needed a day off after every six.

Adaptation to mileage happens when your legs can recover. If you beat them until they are sore and keep beating them, you actually lose performance and break down muscle tissue. The rest time is when you grow. If you never rest you will possibly survive the ride, but you will lose capacity steadily.

If you are willing to take twice as long to ride to work for several days, that might give your legs enough of a rest. Might not.

Go ahead and do your weekend plan. (I wouldn't but I hate to quash others' wills. Go do it and learn the sore and painful lesson on your own.) Next week you will be waiting for the weekend ... so you can stop riding.

Pretty much anyone who works out with any method will tell you ... do Not work sore muscles.

Personally I tried to use the seventh day to do errands, where I could ride at six or eight miles an hour, just enough to get blood flowing and to bring nutrients and flush dead cells. Going for a walk would also be good. If you need on day of inactivity and then one day of light effort, do it.

Nowadays, (considerably older and Not in good shape) I sometimes cannot ride every other day. I hate to miss a day (days are precious now that I am old and don't have the seemingly infinite supply) but I have learned that if I overdo it I will lose a lot more days, and the one-extra day of rest is better than a week of recovery.