Hi! Myself Rima Roy And I Am 29 Weeks Pregnant.At

Hi! Myself Rima Roy and I am 29 weeks pregnant.At the early stage of my pregnancy i was not facing any kind of problem even Doctor also told me that the size of my baby is alright.The problem is that 3days back i was admitted to hospital with seviere pain in the left size of my tummy,which was not a labour pain.After going through the USG Doctors discovered there is a 8.1cm sized fibroid present outside the wall of the Uterus.One Year back i had gone with same problem and had a surgery.Before i had gone with many USG's but at that time i had no knowledge about that Fibroid.But now Doctor is telling that my baby's growth is very small and so recommended me to take L-Arginine and Proanthocyanidin Granules (ARG 9) powder everyday once in a day.
Is there any High Risk of Pregnancy?Is Intake of this Powder will improve my baby's growth till 34 weeks?Doctor is telling after delivery the size of the fibroid will decrease,is it true?Kindly help me out