Help😭

My husband & I have been trying to conceive for a while now. My period is irregular but I usually start between a week & 10 days from the time my period is supposed to come . Sometimes my period comes on time sometimes it doesn’t . I am now 27 days late, no signs of my period coming, but several negative tests. I’m very irritable, I’ve been tired a lot, weird food cravings, & some nausea. I’m not sure what’s going on😭 anyone else going through this or been through this & ended up pregnant ?