Hay, totally normal yan during pregnancy kasi ang hormones and increased blood flow nag-cause ng sensitivity doon, pero para peace of mind mo, best talaga mag-check sa OB mo para ma-rule out kung wala nang infection like yeast, a few of us preggy moms had the same concern and our doctors assured us it's okay pero want to be sure lang. In the meantime, wear breathable cotton underwear, avoid douching, and keep the area dry; some moms swear by wearing loose clothing din talaga. Congrats sa first baby mo!