Sister in law!

Barbara • Married my high school sweetheart. Going on 9 years together. Mother to a beautiful cleft princess.
I'm not sure this is the right place to post this but I'm not sure we're else. I just found out im pregnant! Great news for me and the hubby. The only "problem" is that my sister in law has been ttc since December and hasn't gotten her bfp yet. We've only been trying for about 4 months. I feel almost guilty. I love my sister in law and consider her like a sister. I don't know how I should tell her so that she won't feel bad. I've been in her shoes befor and I know it stinks when someone else gets pregnant so easily  when you've been trying so long. I just don't want to hurt her feelings! Please help!!!