Hoarding old pregnancy tests

Allison • 28 years old, 2 miscarriages in ‘15 & ‘16. Married 💍. 💙 KJS 6/30/18 💙 BBS 4/29/22
I still have a bag full of all of my positive pregnancy tests from before my miscarriage in August (there are a ton, probably around 25). They're faded and old and the bag even smells faintly of pee, but I can't bring myself to throw them away. They're the only tangible things I have to remind myself that I really was pregnant. 
I have a feeling that I'll keep them until I get pregnant again, which may be years from now. 
Anyone else hang on to their tests after their miscarriage?