28 weeks pregnant with my third and first GD diagnosis

I failed the one hour glucose by one point. I didn’t have time this week to do the three hour test so I’m monitoring my fasting and post meal glucose numbers. I’ve only had two within range readings so far and I’m on day 2. I’ve been eating well balanced meals, lots of protein and veggies, limiting startchy carbs and walking for 10 minutes after most meals. Any other tips to decrease my sugar spikes??