Is this normal?

Megan

I’m 37w2d with my third baby. I plan on breastfeeding (as long as everything works out). I didn’t with my other two because I was 22 with my first when I had her. And 24 with my second. I’ll be 28 next month. I just felt like then I didn’t look into it as much as I am now. But my question is.. is it normal to not leak during pregnancy? And did you ever feel like one breast was going to do better then the other when it comes to nursing? I try to hand express (very little) just to help prepare myself for this journey and I feel like I can always get something from one side and not the other.