As Alice said - Yes! but nothing is set in concrete. Depending on the cow and how the calf was doing, I had an absolute minimum of 5 months of share milking because not only did I want the milk but I also wanted a good, healthy calf to either put in the freezer (eventually), keep as an up and coming milker or to on-sell.
Experience is a good teacher but do start off doing both your cow, and it's calf, well.
DO expect a few problems - the chances are very high that once you start on this regime, your cow will withhold her milk for her calf. Natural response but extremely frustrating for you. If this should happen, grind your teeth but keep your mouth closed, and persist. She will eventually work it out.
Actually, Alice's quote at the bottom of her posts is relevant to most farming activity and particularly to what you are doing: "No great thing is created suddenly" and that is so true. Some of my very best milkers took 2-3 seasons before we got to where we were going.
Cheers,
Ronnie