Not sure what to do.

Okay. So my Husbands little sister (We'll call her Kate) has a contagious viral infection. My sister in law is pregnant and they told her not to be around Kate. I'm 6DPO so not sure if I'm pregnant yet. But my husbands family invited us over for dinner last night. We told them yes before we knew about the infection. My husbands family doesn't know that we are TTC. So my question is. Will I be okay if I go over tonight and have dinner and just avoid Kate. Or should I make up an excuse not to go. :/