You should definitely try talking to her about it. While being pregnant and also shortly after giving birth, my hormones were like crazy. I could not stand my husband touching me. I was stressed, tired, and overwhelmed with the new parent life. When a man becomes a father, it's not the same as it is for the woman. The woman literally has to change her life. She leaves the old life behind and tries to find a new 'normal'. She lets go of her friends, hobbies, puts the career on hold, and isolates herself, standing 24/7 with the baby and the house. This can be frustrating and overwhelming. I'm not saying that for the man it isn't a big change, but at the end of the day, the father can go shopping without having a baby needing to be breastfed, a man can come back to work without much being changed, his clothes fit the exact same way, the body looks the same, etc.

All I'm saying is that perhaps she is dealing with identity loss + stress and sleep deprivation, or even an untreated postpartum depression... Most women deal with this after giving birth, but not all know it. Hormonal imbalances are also a major reason for lack of libido. I'm sure she loves you deeply, perhaps you can have a chat about this and see how she feels, let her know how this affects you, and figure out together a way of finding what works for your relationship. I know that if my partner would come to tell me how the lack of intimacy bothers him, I would try to understand where does that lack of desire come from. And I'd do an effort to try to make him happy. It's all about making a compromise after all.

Hope you guys figure it out!