Nope. Ultra sound is must.

No sound waves are safest. That's y recommended during pregnancy.

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/3394">Scans Recommended For Every Mom During First Trimester</a></b></span>

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/1458">Are scans and vitamins really needed during pregnancy?</a></b></span>

No it's required