Ay normal lang yan mama, especially sa second trimester! The baby's growing and putting pressure sa bladder mo, kaya mas madalas kang mag-ihi at sometimes may slight leakage pa, lalo na pag tumalon ka or nag-laugh hard. A few of us moms noticed the same thing around that time, kaya hindi ka nag-iisa, one of my friends even kept extra panties sa bag niya everywhere hehe. But if may unusual color, smell, or itching kasama, better check with your OB just to be safe kasi sometimes yeast infection din yan sa pregnancy, so para sure lang.