When do you start producing milk during pregnancy?

Question

First pregnancy and I'm just curious. I've heard anywhere from 16 weeks to 38 weeks. Tia in advance to whomever replies

Answer

Usually when baby is born but it can start earlier.

Answer

Everybody is different, and I have heard the whole “can start leaking anywhere around 16-38 weeks” I even bought machine washable nursing pads very early(at 18-20weeks I bought them)🤣, but I personally(FTM here🙋‍♀️) didn’t start getting my milk in until my baby was 3 days old. I was worried baby wasn’t able to eat (because I wasn’t producing milk yet...) but after baby is born if you are trying to breastfeed, you do produce claustrum yes. That will feed baby enough till your milk comes in. (if it doesn’t come in before baby is born, like my situation) hope this helped a momma!☺️

Answer

Your body can start producing colostrum as early as 16 weeks. I’m 25 weeks with my second, and haven’t had any leaking yet, though my breasts are definitely fuller. I can’t remember exactly when it started with my first, but my guess would be around 30 weeks. 
Your actual milk is triggered to start when your body releases the placenta. It can take a few days for the milk to come in, but the colostrum your body produces is highly nutritious and is all your baby will need in the beginning. When a baby is born, their stomach is the size of a cherry, so it doesn’t take much to fill them up.

Answer

Colostrum can start earlier. I didn't start expressing Colostrum until halfway through my last trimester. L milk didn't come in until 2 days after birth

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You don't make milk until after baby is born. You may make colostrum before baby is born but theres not an exact time you start producing.

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Shouldn’t you press down on your nipples to release the colostrum once it does start coming in?

Answer

It depends on your body some women don’t start to produce until after birth while some can start from the second or third trimester