I did the normal urine test and doctor said I have excess protein in urine and ask me to urine into a bottle for urine culture test. Should I be worried?

Excess protein in your urine can be a sign of a urinary tract infection (UTI), kidney damage, or certain other disorders. You can read about them here : http://www.babycenter.com/0_urine-tests-during-pregnancy_1699.bc If you have protein in your urine but your blood pressure is normal, the doctor is probably sending your urine sample to test for a UTI. Ask your doctor for more information if you're really worried. I really hope it's nothing serious :)