TTC, frustrated and depressed

My hubby and I have been trying to conceive for almost eight months. Three months ago I came across Glow and although I love the support, it keeps getting my fertile days off, therefore decreasing all our hard work.... 
Work.. Sex is supposed to be fun, but lately it only feels like a chore. I'm dying to have a baby but I'm really sick of feeling depressed when my AF comes ...
Anyone have any ideas to make sex more random and fun...without being so "scheduled"? 
Any and all ideas welcome on predicting ovulation, having sex when it most matters, dealing with a BFP every month🙏🏼
Thank you 
💫✨Baby dust to all you lovely ladies 👶🏽✨💫