Need ideas to surprise husband with BFP after 3+ years of trying.

About me..... I am 36, I had my daughter at 17. I got married in 2014 to my husband who does not have any kids of his own. From day one of us dating, he has treated my daughter as his own. All he wants is to be a dad of a baby of his own. Well, after 3 1/2 years, I got a faint positive this morning! We are staying the weekend with his mom and I wanted to surprise them both with the wonderful news. His family has just lost 4 people in the last 6 months and everyone needs something positive right now. With limited time on my hands, does anyone have ideas to surprise them tomorrow after I take another test? TIA!