9 dpo, 3rd pregnancy, lactating ?!?

So today I noticed my nipples were kinda dark and I squeezed one and milk came out . This is my 3 rd pregnancy, 1 live baby whom I breastfed for 10 months, but she is 3 yrs old .

Could this be a sign of early pregnancy ? I have lots of other symptoms, which I get symptoms early when pregnant I've noticed.

Anyone else experience this ??