Keeping secret for career progression

Posted this elsewhere but still need feedback.

Just found out I’m expecting a few days ago and it is happening at the worst time. I’m preparing for a move and a change in my career. If my job finds out I’m expecting I can kiss everything I’ve worked for goodbye. I need to know tips for hiding this pregnancy (flowy dresses/shirts aren’t an option). Looking/being physically fit is a big part of my job. I have to stay active but I already feel so damn fatigued.

What can I do? I know it sounds crazy but I’m freaking out right now. This is my second pregnancy and I feel like I’m already showing sooner than my first!

The biggest issue is at the point where I will be 20wks I have an important trip to take for my job & I cannot be pregnant. Without this 6wk trip I cannot advance in my job. This sounds selfish I know but I want both. A safe healthy pregnancy, and to advance in my job. I didn’t show until I was 7months the first time around but I’m not sure I’ll be so lucky this time. Any advice for controlling weight gain & hiding bump safely? Thank you.

Also, I do plan on coming clean to my work but only after I have completed the trip and reached advancement. Like I said I know it seems selfish but without this promotion I will not be in a very good place to have another child.