tips for nausea and vomiting antibiotics

I'm on antibiotics because I had a uti that was making me very sick with two different strains of bacteria. I'm 6 weeks away from my due date and I'm supposed to take it twice a day until I deliver. I took my first dose this morning and took as directed (with food or milk) and have already thrown up. I just can't feel this sick for the next 6 weeks. Does anybody have tips or suggestions that have helped them cope with this? I'm on macrobid twice a day