Bbt times

Ciara • Pregnant with baby #1
Does taking temp have to be the same time every day ? Usually I have been taking mine between 6:15a-6:30a but because it was just the weekend and I have been sleeping in I haven't taken it until about 10:30am ,, will my temp still be accurate ?
​I sleep with it next to my bed so I don't even move before taking temp?