Need Some Reassurance!!!

Hey Ladies My Named Is Krystle And im 23. I Just Found Out On Monday June 15th That Im About 3 Weeks Pregnant (I Do Suffer From PCOS) Latley I Have Been Having Cramps Down There And Its Mild And Thank God No Bleeding. I Went To The Doctor And He Said Everything Looked Normal But Im Still Scared. I Have Had Two Other M/C Before And Im Just Trying To Be As Positive As Posible. Have Any Other Ladies Experienced This During Theyre Pregnancy?