It is ok to begin collecting colostrum after 36 weeks gestation, with the approval of your OBGYN and with education on collection and storage of colostrum by your IBCLC. Your IBCLC can also teach you how to correctly hand express.
It is usually advised to limit the time spent collecting colostrum to about 5-10 minutes, twice per day. It is also recommended that you stop hand expressing if it causes uterine contractions.
Other suggestions for decreasing the risk of hypoglycemia in the 1st days of life include; skin to skin care, delaying bathing the baby, and breastfeeding on demand. Click here for more information and instructions.