No Breast Tenderness, Still Breastfeeding?

Jessica
I am 4w5d and still nursing my 11 month old. I know last time with him my breasts were really sore, but not much at all this time. I am a bit nauseous and tired and I get sore all of by the end of the day, but with a history of recurrent miscarriages I over analyze everything and I was wondering if anyone else experienced the lack of breast tenderness. Thanks!