Do FIBROIDS cause complications ?M WORRIED,PLZ ANSWER-

HI ,I am in the early stages of pregnancy....5-6 weeks.i had an ultra sound done today to determine the age of the fetus.the doc said that she could see the sack but not the fetus and she could not hear the heart beat.
she said that it could be because the fetus may be behind a fibroid (a benign tumour). Do fibroids cause complications in future?
She asked me to get an ultra sound done after a week.
Has any body gone through this phase.Is there anything to worry about?was the ultrasound taken too early?any advice would be appreciated.thanx

HI...I HAD MY BABY GIRL 6 MONTHS AGO...I WAS HAVING ALOT OF PAIN..LOWER BACK...AND CONTRACTIONS WHEN I WALKED...AFTER ABOUT 7 MONTHS...WHEN I GOT MY ULTRASOUND MY BABY WAS BREECH...SHE WOULD NOT TURN AT ALL...SO I ENDED UP HAVING A C-SECTION...WHEN THE DOC WENT IN...HE TOLD ME THAT I HAD 2 FIBROIDS THE SIZE OF TANGERINES...AND THAT IT PROBABLY CAUSED ME TO HAVE THE C-SECTION...SEE WHEN THEY ARE NOT REAL SMALL...THEY CAN CHANGE THE SHAPE OF THE UTERUS...AND THE BABY CAN'T TURN PROPERLY...THE C-SETION WENT FINE THOUGH..AND I HAD A HEALTHY 7LB BABY...21 IN...BUT I DID HAVE ALOT OF JOINT AND BACK PAIN AS I GOT BIGGER...HOPE THIS HELPS!