Time of day for testing

Today my period is 2 days late! I have been extremely regular with my cycle. Every 27 days! I tested at 4 today and got a negative! Is it really that much better to test in the morning? I can hardly contain myself! I want to know now lol I'm never late on my period. I haven't had any period symptoms, maybe some very light cramps but they seem more like gas pains seeing as I've had the worst gas this week lol sore breasts and have been very bloated. And hungry all the time! What do you think?