I am going to labour in the early November, should I buy one tin of FM just in case I have not enough BM? What if I am having fever during BFing, can I BF my LO?

Yes you can. In fact, you should continue to breastfeed even when you are sick so that you can pass the antibodies to your baby through your breastmilk. Only very few serious disease like HIV would breastfeeding be required to stop. http://kellymom.com/bf/can-i-breastfeed/illness-surgery/mom-illness/ If you are taking any medication, you can refer to LACTMED website to see if the medication is compatible with breastfeeding. Most medication and antibiotics are suitable for breastfeeding (safe for your baby), the only reason why a medication is not recommended for breastfeeding, is usually because it may hinder breastmilk production like antihistamines medication (zrytec etc) https://toxnet.nlm.nih.gov/newtoxnet/lactmed.htm 1 tin of fm should be more than enough as a spare. If you wish to breastfeed but encounter problems, consider visiting a lactation consultant for help first before giving up. Congrats on your baby and good luck on your breastfeeding journey.