Step 1. How to draw a Pumpkin.
Draw two parallel horizontal line and a vertical line in the middle to join them.

Step 2. How to draw a Pumpkin.
On the right side of the vertical line, draw a curve joining both the ends of it. Again on the right side of this curve draw a big curve joining both the ends.

Step 3. How to draw a Pumpkin.
Make another similar curve beside the previously drawn curve.

Step 4. How to draw a Pumpkin.
Now on the left side of the vertical line, draw a C shape figure which joins to both ends of the vertical line.

Step 5. How to draw a Pumpkin.
Make another C shape figure on the left side of the newly formed curve.

Step 6. How to draw a Pumpkin.
Draw a thin curve on the left side of the previously drawn curve.

Step 7. How to draw a Pumpkin.
Give shape to the stem of pumpkin on the top. Draw few curves around it to show the rest portion of the pumpkin

Step 8. How to draw a Pumpkin.
Draw a leaf above the pumpkin attached to the stem.

Step 9. How to draw a Pumpkin.
Outline the whole image smoothly.

Step 10. How to draw a Pumpkin.
Erase the guidelines

Step 11. How to draw a Pumpkin.
Highlight the figure with small lines to show the bulkiness of the fruit.

Step All together.