Nipple problem

So I've noticed that my right nipple is soft all the time. I can't get it to go hard when I get aroused or when it's stimulated. I've started leaking from my left nipple and I'm able to squeeze the liquid out that nipple but when I try to do it to my right nipple I can't grasp the nipple it disappears and I don't know if that's normal I want to breastfeed but I'm scared incase I can off only one breast. Has this happened to anyone else I'm 30 weeks pregnant