None, not really. There's something called dawn Phenomenon, it's your liver dumping glucose to give you energy to start the day. Thing is, if you have a restless night, woke early and tested late, had nightmares or had a cat that thought it'd be cool to use you as a trampoline at 3 a.m., it'll start dumping a bit early or more than required. What's more telling is what sugars do around meals. Test before a meal and 2 hours after the first bite. If that's off, you have something to work with.
Technically speaking, 3.9 to 5.4 mmols/l would put you in the normal range. You're just barely over, and a meter has a 15% margin of error, so... Far as that goes, you're fine.