Weird situation

Recently I got a girl's Whatsapp from Tinder, seemed like a pretty decent girl and we managed to set up a date. I text her inbetween asking her how her Monday is. Doesn't read. I re-engage 2 days later on the date of the date to confirm, it's been a day since then and she still hasn't read either. She initially handed over her Whatsapp after replying 4 days after my initial message saying she's having family issues. Is this a case of being patient or should I re-engage in a day or two saying something like "Didn't take you for the flakey type" not sure what to do.