AF late..

Hubby and I have been TTC for 3 months after a miscarriage. I'm always on time and never have tender Brest or nauseous so much before a period. I'm currently one day late and my body just seems to be changing. 
When is the best time to test? I don't want to get excited and then get a BFN
Help please!😭 baby dust to all..💞👶🏻🌈🌬🤰🏻