Just frustrated

I'm just frustrated today. My period is 4 days late and I've been testing everyday, only to get negatives. We haven't been TTC for very long, but I never really just how frustrating it can be to not be in control of something happening in your own body. I think the hardest part is my husband. He can't understand why I am so anxious about missing my period. His response is just "it's probably a few days late, that happens right?" And he's right. It does happen. I guess what he can't understand how soul crushing it is to get your hopes up every day your period hasn't showed only to get a fat negative test. It's may be the worst feeling in the entire world. I know he's trying to understand, but he can't and I can't explain it to him. I just wish he could be a little more sympathetic, you know?