Just after some advice, would you girls do a long haul/international flight if in tww or in early pregnancy?

We've been trying to plan a trip to New York for awhile, but have put things on hold for the IVF. We were planning on going to for 3 weeks in November this year, and i'm planning on doing m next FET in July and then i guess August/september if that one fails. So i could technically be around 2-4 months pregnant.

I'm a pretty good flyer, I just chill out and watch movies/sleep so not a stressy flyer.

Would you still fly in the first trimester? Hard to know what to do. I wouldn't want to finally get a BFP stick and then ruin my chances with a long haul flight.