Kaye you didn't say where you
Kaye you didn't say where you lived or what kind of potatoes you planted.It takes 70 to 120 days for potatoes to form.If I were you I would gently dig around the roots of the potato plants and see if you can find any potatoes. If there are none or if they are too little I would give them a chance to grow.But you are going to have to keep them moist. It would help if you would mulch them heavily.GOOD LUCK