Unexpected Pregnancy During Wedding Planning

My fiancé and I got engaged December 2019 and I just found out last night that I am pregnant. We have already booked our wedding venue for December 5, 2020. Has anyone else found out they were pregnant while you’re in the middle of planning your wedding? I haven’t told anyone besides my fiancé and I just needed somewhere to let this out. He’s super excited and can’t wait, and for me a million things are running through my mind. And mainly my problem comes down to me being worried about what everyone else thinks. We’ve been together for 4.5 years and he finally proposed and I’m getting to have my dream wedding, but now I feel like everyone is going to say that we only got engaged because I’m pregnant. I’m also afraid that my family will be disappointed (I’m 25 and still worried that I will disappoint them 😂) when we tell them. My fiancé works away from home 28+ days at a time so him not being here has been hard since he’s the only person that knows and I feel like him being home would just make it better. I know this is all jumbled up and all over the place but that’s exactly how my mind feels right now and I’m glad I have somewhere that I can be open until we decide to tell everyone!