No sex drive 🙁

FTM here - I had my son on January 27th. I'm breastfeeding and pumping while I'm at work during the week and I'm on the mini-pill, so I haven't had a period yet. Anyone else in this situation and have no sex drive? It's really putting a strain on our marriage and idk if it's due to breastfeeding, the pill, lack of sleep, or a combination of them all? Should I talk to my OBGYN about it? I'm just looking for any suggestions or advice 🙁