Dry 🐱 after babies?

I don’t know what happened, I’m assuming pregnancy happened because ever since I had my third (4-22-18) I cannot get wet down there. I can get really in the mood and ready but not wet. My husband gives me oral and actually loves doing it, I mean he does it almost every time so I don’t think he even really knows there’s an issue about not getting wet but it still bothers me. Like the couple random times he doesn’t give oral he’ll have to lick down there. Should I speak to my doctor? In all seriousness guys I know it’s not a life threatening issue but maybe my doctor can explain to me what happened? Anyone else experience this? Did it get better? What did you do?