I haven't had milk in by breasts for so long, but I noticed they were getting a little wet when I would play with them at 31 weeks! After growing so much during pregnancy, they are finally starting to lactate. It's just a little bit, but I squeeze my nipples and I am able to express some milk! The drops are mostly clear to yellowish colostrum, but I get a little bit of milky white toward the end as well.