I’m over it

I literally just threw another not pregnant test across the bathroom. We’ve been trying for our final baby for technically 8 months. 6 months last year and two months this year with a break because I had to have an ovary and tube removed. Im 37 and today just broke me. I’ve been having this weird stabbing pain in my left side and lower left side back not super painful just nagging. Since 7 dpo. My period is due in the next two days. Even though I didn’t test with FMU I feel like it should’ve given me a positive if I were truly pregnant. It was so easy to get pregnant in my 20’s. I know others have it worse than me and I know I should be grateful that I do in fact have children and I am please don’t get me wrong but it still is so painful when you and your husband want something so desperately and it just isn’t happening. Just feeling like I’m old and shriveled up :(