my boyfriend is telling his family I'm pregnant and I'm only 5 weeks ?

I'm livid. I'm only 5 weeks and 5 days and this whole pregnancy is a shock for me. I've been an emotional wreck because of hormones, knowing my life is going to dramatically change, and the nerves of telling my family(I'm only 20 & still in college) The other day he went to his Grandmothers and right before he left I told him "please don't tell her, this is too soon we need to figure everything out & I want to tell my mom first". He comes back two hours later and goes "I told her". 
And today I've been in the hospital all day because my papa is dying and while I was there my bf went to his moms. Once again I told him not to tell his mom. He just called me and goes "I told my mom". I was like are you fucking kidding me and hung up. 
It's just so selfish and rude. He could at least wait for me to be there??? Because next time I see them it's going to be so awkward. I'm so frustrated and hurt. He doesn't get why I'm so mad. How do I explain to him why this is not okay?
It's so hard for me because men don't understand or go through what us women go through. Yes his life will change but mine will change more & he doesn't seem to understand that. I feel like as the woman & the one carrying the baby, I should be the one to decide when to tell people. I literally just want to cry