What is in ur stomach that would cause a steady ache from ur clitoris to ur bellybutton
Your stomach is above your belly button, and is the pouch that receives food, so the area you refer to is generally called your abdomen. The abdominal region from your clitoris to your belly button would be where your reproductive organs are, including your uterus (womb), fallopian tubes and ovaries.
There are several possible reasons for an ache there, the most common being menstrual pain and ovulation pain, but sometimes it can be from reproductive disorders. You haven't said anything about your age or whether there are any other symptoms, or when it happens (after a particular event maybe?).
I hope this helps as a start, but if you can give more information, I will try and respond