Collecting Colostrum

Hey ladies… Maybe I can ask here. I'm 36 weeks and 2 days old, and I've started collecting colostrum. But it seems like this is still a pro and con for breastfeeding mothers and pregnant mothers. What do you think about this? And also every time I do this, I feel no contractions and so on. Does this have many functions later on for the baby? And one more thing.. there s one skin tag under the nipple. And it s super annoying. Anyone has this?