Pregnancyyy question

Hi mommies ask lang I'm currently 20weeks and 3days preggy this is my 1st time pregnancy. Ask lang kung anong safe na feminine wash gamitin? I'm currently using betadine feminine wash po and kung safe din po ba ito? 2nd is normal lang po ba sa 20 weeks and 3days na di pa ganun kalaki ang tummy? Kasi ung akin maumbok na pero di pa ganun kalaki. Thanks sa sasagot. :)