My heart goes out to you. Pregnancy is a big enough deal on its own without the added stress of migraine. But I want to reassure you. In my experience, auras are scary but temporary. I thought I was having a stroke with hallucinations the first time. My hubby took me to the ER and they thought it was a stroke too. But a gazillion tests and imaging convinced them otherwise. I spent a couple days in the hospital before going home none the worse for wear. After half a dozen almost identical experiences I quit going to the ER. So this is what I suggest to you. Parts of our migraine brains go wonky for awhile but they eventually reset themselves. Auras are a royal pain but, as long as you don’t try try driving or operating machinery, essentially benign. I wish you all the best!