My miracle baby

Kendall
My husband and I have been trying for a baby for two years with zero luck. 
We had started testing and found out that our issue was him and shortly after found out our only option was <a href="https://glowing.com/glow-fertility-program">ivf</a>. 
We have an appointment June 4 for his sperm. 
Well we has been gone for two weeks and I found out I was pregnant while he was gone. My tests are super strong I have taken a million tests just to make myself feel better. I got my blood work done yesterday and I got a positive blood work. 
We go on vacation in a few weeks and will tell our families when we get home. 
I am nervous about flying home and possibly loosing the baby due to the flight. 
How safe is it to fly this early? 
I am 4w today but will be around 6/7 weeks  
Also is anyone else due January 30???