Okay mama, ampalaya is generally safe kahit preggy, pero dahil medyo "strong" siya and may slight bitter taste, better to check with your OB kung okay lang talaga for you specifically, some doctors prefer limiting it in early pregnancy dahil may properties na dapat bantayan, pero usually okay naman in moderation, lalo na kung lutong-bahay lang and hindi raw, raw na. Ang main thing is balance lang with your other nutrients, at make sure you're eating it fresh and cooked well!