Sex after pregnancy

Hello everyone !

Since I was pregnant a year ago , I've lost my libido . Sex became very boring for me . I've no pleasure. I make love with my husband more by duty than by desire .Lastly, I almost fell asleep during sex.Are there women who have the same situation ? and how did you manage that? I gave birth almost 4months now but the issue still .

Sorry for my bad English , hope you understand what I meant and could help me . Thanks you !