You need to take a high calorie and high protein diet and get ultrasound scans done once a month to see baby growth till it is normal. Intensive monitoring for well being of baby like counting movements and non-stress tests are also needed if the baby is small after 32 weeks till delivery. If the baby does not increase weight and remains inactive an early section may be needed at around 34-36 weeks. If the baby grows well, and is active, then pregnancy can be continued till a longer time till say 38 weeks.