15 weeks and 3 days, having the worst cramps. I called my doctor, they said to drink water and see…

15 weeks and 3 days, having the worst cramps. I called my doctor, they said to drink water and see if it goes away. If it doesn't by tomorrow then to call back. I'm not bleeding or anything. Yesterday the pain was on my left side, today it's in my right. It seriously hurts to stand, sit, walk, or lay down. I don't know what to do 😫