Lactating

Have any of you started lactating yet? And if not does it feel like your getting close? This may be TMI for some but every day my nipples are sore and...tingly? I don't know how else to describe it. I make sure and keep them clean when I shower and stuff and every time I find a bit of white residue that I clean out but no for sure obvious drops of milk. Just wondering if maybe I should start getting my pump ready lol