Pregnant yes or no?! Still too early??

I have my period around the same day every month. The first time I got pregnant I didn’t know until I was about 4/5 weeks along. So I tested very late. This month I ovulated around 9th/10th according to an ovulation test. I had sex with my fiancé on the 8th, 9th & 10th. So according to the calculations 14 DPO would be the 23rd or 24th. My period was supposed to come today according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> but it still hasn’t come. I took a test 6 days before & it was negative. I took another test today & it was still negative. I’ve been cramping for 3 days now, pain in breasts, nauseous & now dizzy today... when should I take another test? Should I wait a week or just do a blood test on Tuesday if it hasn’t come yet, as I have a drs appointment that evening?

Thanks in advance!