Ultrasound

Mga mommies question lang po, ilang beses po ba dapat ang ultrasound natin the whole duration ng pregnancy? I had my first ultrasound po kasi at 5 weeks then my OB said yung next daw po is 22 weeks na kumbaga sabay na yung gender and if may abnormalities (forgot the term). may myoma po kasi ako and i want to have another ultrasound sana at 16weeks. She gave me referral naman po but my husband is telling me about radiation daw po but I really want to follow up on my condition sana kasi di naman sya nakikita sa normal follow ups lang sa OB. Thank you po sa sasagot 🙏🙏 first time Mom po ako.