Make sure when checking your refund status on the Where's My Refund? site or IRS2Go app, to enter the filers name listed first on the tax return. If you are able to pull the tax return under your husband's name and not your name this is why.
The IRS website may just be updating. Updates are made daily, usually overnight. The IRS issues most refunds within 21 days, so if your refund is already approved, keep checking back your refund should updated soon to "Refund Sent".
Tax Season Refund Frequently Asked Questions