10 weeks- having abdominal cramps

Dear friends,

I am 10 weeks pregnant and having mild lower abdominal cramps yesterday night after dinner, i just had water and tried to sleep, cramps were mild and not much affecting and continued to be the same today morning also, and been increasing in the middle of the day and is having severe sharp pain in my upper abdominal, I am experiencing constipation now and then after confirmation but trying to get over it by having dry prunes/fiber rich foods..

Can any one throw some light on this situation..

PS: already called doctor's office, still waiting on their call back.

Thanks

10 weeks- having abdominal cramps