To do it or not to do it (yet)

Hiya ladies,

I am pretty new to this, but me and my husband are trying to conceive. I have took in consideration my ovulation day and “worked it” out from there. My husband was positive that I am pregnant and he bought a CB early test and it came out negative.

Now my period supposed to come on the 22nd but no sign of it. I had experienced how heart breaking a negative test can be.... when would you recommended I should do another one?

This if Mother Nature decides to “surprise” me differently.