Advice, please? Lost and confused..

Abby✌ • Became mommy to the most beautiful little girl on June 22, 2017. ❤❤ So blessed.

Okay, so the last month or so, my husband has been acting strange.. He's started smoking weed every day, even though we promised each other we would never do it again after finding out that I was pregnant (19 weeks). And when I get mad and try talking to him about it, he gets pissed and says that it doesn't affect me so I have no right to be mad.

He works Monday though Friday. The last few weeks, we've hardly spent any time together because all he wants to do is sleep when he's at home.. and then once Friday comes, he takes off up north to go spend the weekend with a friend. I've never met this friend and he has never invited me to go with him.

I don't know what to do.. Whenever I try talking to him about it, he keeps saying "everything he does is for me and the baby". But this is all just seeming selfish to me.. Am I being unreasonable with my worries..?