i am not sure to be honest,maybe call lipotrim on freephone 0800 413 735 and ask them when you could start after giving birth,suppose it depends on whether or not you are breastfeeding etc but ask them and they will tell you all you need to know. sorry i couldnt be more help to you and good luck with the birth of your baby and your weight loss journey afterwards, maybe see you here reporting your weekly losses soon. xxxxx