LI follows the autosomal recessive pattern, so that means that for you child to have the same skin condition as you, your partner would have to possess the relevant genetic mutations. The odds of this happening depend on what genetic issues caused your ichthyosis, but there is a much bigger chance of you having a healthy baby than a baby affected by ichthyosis.
If it is of great concern for you and may impact on your decision making process regarding the baby, you should seek the assistance of a genetic counsellor.
All the best with you pregnancy!
(Jeffrey Gridley - Lamellar Ichthyosis)