Grateful for what I have but disappointed

So I'm a mommy to two amazing little girls and even though I'm very grateful and happy to have them, everytime I see that negative or get my period I can't help but be sad and a bit disappointed that it didn't happen. I feel awful for even feeling that sadness cause I was blessed with these two precious monkeys and I guess I'm wondering does anyone feel the same???

This feeling hit hard today cause my period was due Tuesday last week didn't show but test was negative so I wanted to wait to Tuesday this week and well af showed this morning 😢