Blood in vomit

Krissy • Currently a proud mother of 4 (a boy and 3 girls)....engaged to a wonderful man!
I'm currently 31weeks pregnant and still having morning sickness with the occasional blood in my vomit the last 2 months along with really bad contractions I didn't have this problem with my first 2 children but with this being my rainbow baby I am very cautious... Has anyone else experienced this?