Stumbled upon your post from a couple of years back, and it brought back memories of planning trips during pregnancy. Traveling around the 20th week can indeed be safe for many expectant mothers, but it's always a good idea to consult with your healthcare provider to ensure it's the right choice for you and your baby.
When it comes to flying, especially for longer flights of 6-7 hours, comfort is key, especially during pregnancy. Back then, I found that flying business class https://travelbusinessclass.com/ made a world of difference in terms of comfort and convenience. With more spacious seating and better amenities, it can really help make the journey more enjoyable.