Clearblue digital experiences!!

I just took a test and I’m 2 days late. It came up not pregnant. I know first morning urine is best but wanted to take one now. I already have 2 kids and at this point I’d have a positive test but I know every pregnancy is different. It’s very unusual for me to be late for my period...I’m very regular with 26-28 days. I’m now on day 30 and no signs of it. I wasn’t trying to get pregnant and use the pull out method which I know isn’t 100% effective. Anyone experience with clearblue digital and have any advice?!