If you BF, what was it like when AF returned? I know it may be a while before it returns since I nurse, but I have had a TON of CM lately, and now both nips are sore. DH thinks it's DD's new teeth hurting me, but I don't think she really touches me with them. Does it sound like AF may return soon?
Re: TMI question, sorry!
I think you would be able to tell if it was her teeth because she would have bit you. Otherwise nursing in general with teeth doesn't hurt.
When I was still nursing and my period had returned I found that my nipples would get very sensitive when it was O time. If you have lots of CM and your nipples are sore it could mean that you are getting ready to O and AF will be returning soon. I had my first PP period at 6 months when DS had started eating more solids and therefore I believe eating less BM.