No boob soreness

Houseofchaos

So my telltale sign with all of my pregnancies was that my nipples hurt...well with this pregnancy I don't have that. In fact my boobs are not even sore. Sometimes I'll get sharp pains in them or a burning sensation, then it'll stop and that's it. I have multiple other symptoms but that was always my big symptom...besides nausea...could it be after 5 pregnancies and BFing for a total of 30 months my "girls" just aren't as affected by this process as they used to be?