I am Pregnant. Please help.

I just found out I am pregnant two days ago and I was told I probably have to go off of all of my medications...especially the POTS focused ones...like midodrine, fludricortisone, propranolol, ivabradine. I am really upset as I was told I was a high risk pregnancy and then told this was going to be a really really hard lifestyle change for me. Well, we would love to keep it but I am terrified of how I'm going to feel off of all these meds that have helped manage me for the past few years. and it took so long to nail my regimen :( Any advice/thoughts/suggestions on anything would be appreciated. As it stands I am sweating bricks and absolutely miserable (and I took my meds today before finding all this out) I'm supposed to talk to my primary more tommorow about tapering the midodrine and fludro but I literally am freaking out about this.