TWW and stress

Long story short, I had a MC in January at almost 14 weeks. My hubs and I started truly trying this month. I am now in my TWW. My uncle unexpectedly passed away Monday night at the age of 52. I am stressed, emotional, and extremely upset. My family and extended family are my number one priority right now, but I am afraid that my chance of conceiving this month is now slim due to stress. Can stress cause implantation to not happen?