So I am now 4 days late on my period... should I test in the morning or wait till monday or…

So I am now 4 days late on my period... should I test in the morning or wait till monday or Wednesday? My last period was August 28th - September 3rd. What should I do? I should also say I tested on the 25th when I was supposed to get it and then I tested again the 26th but came up negative. And I really dont want to get my hopes up cause we have been trying ttc for 5 months now.