Feeling horrible

This is my second pregnancy I'm 19 weeks 2 days literally since the beginning I have felt absolutely miserable. Constant vomiting doesn't matter the time of day I can barely hold a single thing down and now I'm loosing weight. Had a UTI which caused spotting so I've been in bed rest for 2 weeks, but now UTI is gone.  I just need some words of wisdom. I'm feeling so emotional and nothing makes me feel better. This pregnancy has been so rough.