Anyone lactating yet???

Monica • 36 yo, mother of 2
Hey guys, im 30 weeks now, due apr 16, and last night my pijama just had a small roumd patch. When i looked at my boob, a small drop of milk was coming out. I was freake out!!! Is it normal?? :(((((( Im so scared, everything is so real now! (1st baby, btw)