My husband doesn't want us to tel our families were pregnant because of so many losses

Whitney • New Squishy Coming 2/28/18...🎀Evalina LaDonna 2/24/16 🎀....✨Angels: Zander 6M, Journey 3M
6.19.14 we lost our baby boy Zander Wyatt at 6 months along.
1.21.15 we lost our lil girl Journey Azalea at 12 wks.
4.25.15 we had a chemical pregnancy.
And we're pregnant again-- husband wants to wait until first real ultrasound appointment around 12-14 weeks or I'm obviously showing before telling anyone because he doesn't want to have to feel awkward around them again if something happens..
I want to tell my mom and dad but he doesn't want me to for a lil while either and he's not telling his mom. 
I feel guilty hiding something from my mother when if something does go awry I would like to k is I have her praying for us... 
I understand him being cautious because of so many losses that Drs and specialists say we're not at all related.. But... STILL!?