The reversed Knight of Pentacles indicates a context where there is a lack of information. It could be that you do not yet have enough information about the person you are forming a relationship with or about your child with special needs. This could make you insecure and unsure how to deal with the situation.
The Tower indicates that you should focus on approaching challenges with a positive attitude. You must not be discouraged by any obstacle that may arise. You must work to recognize and accept challenges and then focus on how to overcome them.
The reversed Three of Cups indicates that you will have difficulty building a fulfilling relationship with someone who has a child with special needs. There may be some confusion between you and some misunderstandings that need to be cleared up. Your expectations may not be fully realized, but that doesn't mean there is no hope. You have to expect that it will take some time to build a strong and lasting relationship.
Tarot reading suggests that you may find it difficult to relate to someone who has a child with special needs. You should be prepared to face challenges with a positive attitude and have patience as you slowly build your relationship. To be most successful, it's important to keep communication open and honest so that any misunderstandings can be cleared up and confusion avoided.