Stomach flu worries???

My husband just came down with the famed Winter Vomiting Bug (norovirus). And like a side character in The Walking Dead, I know it’s just a matter of time before I get it. I’m in my TWW (4DPO) and I’m scared it’ll hurt my chances of implanting/hurt the baby if I do implant. His isn’t bad- thankfully- but I’m still afraid. Do I have much to worry about?

P.S- emetephobes- raise your hands in solidarity for me. I’m PETRIFIED of vomiting.