Horrible migraines while being pregnant! What to do?!

Hi Ladies, I need your help, so I've suffered from migraines for a long time now, but this is my first pregnancy and I'm scared! I had my first migraine headache today, I woke up with this bad headache on the right side of my head, right eye, and even the right side of my nose. I normally take Sumatriptan 100 mg because it's pretty much the only medication that gets ride of my migraine headache. But of course today I didn't take any. Because I didn't take my medication today I've had a headache all day, I threw up in the morning. Although the pain is less right now compared to the morning, I still have it. The reason why I'm scared is because I know how bad my migraines can get, and even though I've kinda survived my first migraine without medication, I don't know what to do to if I get a migraine again and it's at it's worse and I can't take my medication?! Please ladies if anyone here knows or have suffered from migraines while being pregnant and have found a way to deal with them, please let me know, any advice will be very much appreciated it. Thank you.