All kinds of symptoms but unsure...

Sorry in advance if parts of this post is TMI.

Anyways I’m supposed to have started my monthly either late last week or beginning of this week but last week I get sick, fever, chills, coughing my brains out.. than this week my systems either backed up (constipated) or I have the runs (diarrhea) and not to mention I’ve been really tired but that could be due to my 8 month old staying up till midnight and getting up at 5 when his dad leaves to go to work..

One app says I’m 3 days late, another 4 days, and another 1 day. Should I wait till the end of the week to take a pregnancy test, take one now, or wait it out till next week?