family problems and pregnant. πŸ˜­πŸ™πŸ™„

So around June my husband and I were at the end of our lease and debating weather to sign for another year (at a higher rate) or move. We decided to move to a different apartment with different management. We paid all of our deposits and our first month (non refundable) rent. My mother called about two weeks before my move in day and says that she can't afford her mortgage and some other bills. She has lots of bedrooms and asked if we would move in with her instead of our new apartment and have the same amount of bedrooms with slightly less rent. Begged us to help her. We moved in and things went smoothly for the most part. Well aside from the fact that where we would have a whole apartment we now have 2 small rooms and a shared bathroom/ kitchen (my teen sibling lives there too.)Β 
Fast forward to about a month ago. I found out I'm pregnant. We are all excited including her. Now I have pretty bad nausea but the one thing that makes it unbearable is the smell of cigarette smoke. It makes me gag and puke constantly. She smokes in the house. All day long. I've talked to her and asked her not to but she says it's her house and she's going to if she wants. It's bad for the baby and for me. I feel that since we are here helping her (rent. Half of groceries. Power bill. Etc) me asking her to step out on the pourchbto smoke isn't unreasonable. If we were mooching maybe but she's the one needing help.Β 
Oh and she likes to actlike she's doing us a favor like she didn't beg us to move in. We lost $1000 on the apartment we were planning to move to.Β 
I don't mind helping even if we are cramped. But something's got to give. I have to put my baby first. Now we are looking for a house in secret, we're not going to tell her til we find one. And I feel bad, but if she's going to smoke even though I'm pregnant inside the house, she will smoke with a newborn in the house too. I can't have that.Β 
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