Help please !!!

Erica • I recently had a miscarriage and we are trying to have a baby we have been trying for about 5 months praying and hoping
My period is going to be in 7 days but iv been feeling so tired and sick lately I want to take a test but I don't know if it would show up I recently had a mc so I don't want to get my hopes up should I just wait or take one now?