Purchase early to account for postage time
Don’t know if this is good, I assume so, bought online but was delivered after baby was born, so by the time I got home to use it I was already feeding and passed the colostrum collection stage. If purchase again, purchase at 34 weeks or so, so you’ve got time for it to arrive should you have baby early. Obviously can’t/shouldn’t collect colostrum before 36 weeks and I ordered it at 36 and had baby at 37 and 5d. The parcel arrived 37w 5d, the day I was in labour.