Hello and welcome to HCM. Thank you for your query. Proluton injections are completely safe to take and will help in growth of your uterus and cervix in order to allow your baby to grow to a normal size matching its gestational age. This will surely help your baby to grow, please do not delay taking this any further. Utestrogen injections will increase the estrogen in your body which will promote growth and development and support your pregnancy. This injection contains hormones which support a pregnancy, preventing from miscarriages or growth abnormalities which can also result in a termination. Your body might not be producing sufficient amounts of this particular hormone, which is why your doctor has prescribed this. It is absolutely safe, please go ahead with this as well. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you. Best wishes.