Sex drive

So I’ve just had baby number 2 in the beginning of December. I’m going to be 30 in august.

My sex drive is GONE.

I could pretty much go without it. And my fiancé is not having it. He’s very sexual. And we’ve actually had a few disagreements. I feel bad because I’m not as interested anymore and I know he has needs.

Is this normal for women? What do I do!?