Possibly Pregnant?

So my period isn’t due till Wednesday, we are trying for our third baby. With both my girls, I got a positive pregnancy test 3 days before my period was due. But so far, all my test have been negative. It’s just so odd, because I’ve been feeling off, mild cramping here and there that last a few minutes or seconds, sore and tingling breast (I also was able to squeeze out some colostrum yesterday, which didn’t work the other day), and just plain exhausted. Which is not normal for me during ovulation or before my period, and not even during my period. I also have a 28 day cycle on the dot, ovulate on CD 14, and this cycle this month has just been way off, which isn’t normal for me personally. I didn’t get a positive digital till CD 17, and positive test stick till CD 18. So it pushed my cycle to be 32 days long instead of the normal 28 days. Has anyone had this happen, like a negative test, and then later get a positive the day their period is due or shortly after. I mean since all my test have been negative, I’m just anxious for my period to start and we can start trying again. I don’t have a lot of hope of getting a positive test come Wednesday, but you never know. So I was just curious!