Hii this is my first pregnancy, i am in my third month and went for nt scan but the scan couldn’t be done because baby should be of 13 weeks but it’s showing of 10 weeks. There is a difference of 3 weeks..baby’s growth is very low,then i was asked for cv biopsy but the doctor said we can’t do the test now & asked me to wait for 15 days. What should I do for the baby’s growth please someone help me.