Milky nipples

Kat • i like dogs and cake

So I was just in the bath doing my monthly boob check and I noticed a white milky liquid coming out of both nipples (only when I squeeze it). I'm probably not pregnant and I've done 3 tests over the last month or so and they've all come back negative. Even if I was pregnant it'd only be like a month or two so it's probably a good chance it's not milk 😂

Just wondering if anyone knows what it is or could be! Thanks ladies!