Story of my life

So I’m days late like 19 days and I’m scared to take a pregnancy test because this isn’t the only time this has happened. Like 5 months ago it didn’t come for almost a month and a half. I don’t know if it just stress or something is wrong with my ovaries or what. This time feel different though I feel slight cramps and that’s it a week ago I constantly had to use the restroom and it felt like pressure was on my bladder or uterus. Couldn’t really tell. So I drunk more water did a lot of things to help it stop. It lasted a few days like 3 and it went away. First time that has ever happened. Nausea tired and even hungry every hour or every single morning. It weird idk what do.I am trying to conceive tho so I hope i am