“I don’t add oil between oil changes”
Do you mean that the car has never needed oil between changes, or that you choose not to add oil between changes, even if the oil level is low? I am asking this question because of your admitted sparse knowledge about cars.
Anyway, in the wake of this “no oil” incident, it is very likely that your oil consumption will increase. I strongly suggest that you begin by checking the oil every time that you fill the gas tank. If, after a few weeks of this regimen you find that the oil level is still normal, then you can safely switch to checking the oil every two weeks.
However, it is still vital to monitor your oil level very frequently, as oil consumption can increase suddenly. And, you should not allow the dipstick level to drop more than 1 qt before adding oil. Personally, I will not allow an engine’s oil level to drop more than 1/2 qt.