What to do

Long story short.... my husband and I have been going to counseling to help fix our marriage. We’ve been together for 12 years. We’ve had a lot of ups and downs but I’m getting so frustrated. We haven’t been intimate for 4 years.... yes I said 4 years. We lost a baby early on so sex stopped for a while after that. Fast forward things have been going much better for us, but we still haven’t been intimate. I’ve even bought new lingerie and have put it on in front of him and nothing happens. We will be discussing intimacy at our next session. Any ideas on what I should do or say?