Uy, lychee is generally okay na for preggy moms, lalo na if normal ang blood sugar mo! A few of us pregnant mamas enjoy lychee in moderation, it's sweet kaya mas okay kung limited lang, pero since you've checked your levels and they're good, you should be fine naman. Still, better to check with your OB just to be sure, lalo na 7 months na you, they know your full health picture best!