Pregnancy query

Louise
Hi all sorry I was just wondering, Iv just found out I'm pregnant 4 weeks which is great, my dad unfortunately found out in new year he has cancer and had to have chemo and radiotherapy for 6 weeks :(
My concern is I may have to take him to appointments which I'm very happy to do, but is it safe for the baby? I'm not telling anyone until after the first scan due to previous m/c's you see. Any help would be appreciated thanks for reading