Hi ladies, I could really use your expertise about when to use a pregnancy test as I’ve never actually used one before.

First of all, I bought a Clearblue digital test (with weeks indicator) because it’s been 42 days since my last period. However the instructions are not very easy to understand - it’s saying to “test before a missed period.” I realize this is probably a stupid question but, since my period is so late already, do I really need to wait until before my period would’ve been due, or can I just test whenever?