Hard hard hard

Starrlight
Ok,hate to do this but I'am really sad :( I have been trying for a second child now for 6 years!!! I literally feel like I'am disappointing my family. My sweet 7yr old has been asking for years for a sibling and my husband never seizes to remind me that my daughter is getting older and the age gap is too long! Any advice or words of wisdom. I'm just lost and sad. I want a 2nd child more than anything!