Can you produce breast milk if you are not pregnant? 🤔

Cheyllah • Oh hey! 👋🏾
Yeahhh so I am 26, I already have a 3 year old that I breastfed when she was a first born. My boyfriend & I haven't exactly been being safe lately so that's 1 reason I think there may be a small chance of pregnancy , but I changed my nipple rings a couple days ago & later on in the middle of the night I squeezed out a little breast milk (It definitely was not colostrum). I checked online & a website said Galactorrhea may be a cause but Jesus man it was talking about tumors and a whole lot of other medical issues that I'm sure I do not have. I know the only sure way to know if I am pregnant is to take a blood test or pregnancy test but it is 4:30 am and I have a sleep 3 year old in the house so I just wanted to hear if any other ladies have heard of this or experienced this at any time in their lives....?