women's march - need opinions

I signed up to attend the DC women's march on Washington before I found out I was pregnant. I'm 8w1d, 8w4d Saturday. I'm traveling from upstate NY on a midnight bus, traveling through the night, metro into DC, march and other events all day, bus leaves at 6pm to come home - home around 1am. I've been trying to manage my nausea by eating small amounts throughout the day, but some days it's just all day queasiness. I've thrown up many times over the past few weeks - typically around 8am and 6pm. Of course those are times we'll be hopping on the metro and getting ready to come home - busy times with being in crowds and moving around. I'm starting to get very nervous. I feel like I need to decide for sure tomorrow and let my friend know - she'll go either way, but we planned ongoing together to have the buddy system. 

Thoughts? I got a Rx for diclegis tonight and am going to try that.. hoping that helps with the vomiting. Nausea I can mostly handle but I'm worried about visiting in the crowd, on the bus, on the metro! 

Would you go?