Stepkids and not listening!

Im 6 months pregnant have 2 Stepkids

10 & 8. Where i live the weathers only nice for ab 2-3 months , so when the kids got home from school my bf an I told them to go outside and play there's lots for them to do.

Scooters bikes park hide and seek tag kick ball etc. 15 min go by. His son ( 10 ) comes inside and goes im bored which i already knew where this was leading to. So he asks his father if he can play on his ds. He of course says yes. He walks by me as im laying on the couch ( have a very bad headache ) daddy said i can play my ds outside. Like kinda literally throwing it in my face that i said no and he said yes

So i told him no u go outside and play theres no need to sit outside and play on ur ds. Its beautiful out. When its beautiful out u know what the rule is . ( no game systems ) i been there step mom for 4 years ( before people start bashing me ) , so my bf goes upstairs as im laying down up there cause there loud and agian i have a killer headache

And his son goes to my door way looks at me asks his father agian and goes can i play my ds. Now this time my blood is boiling!!! Than to stop if off i have a 1 yr old yorkie who loves attention and etc so whenever the kids or me or my bf leave even if its to go get mail he freaks and as soon as we come in he barks and jumps on us very happy sweet 10.lb pup. So the kids come in once they got bck from park and he started barking. And they pushed him so he fell off the couch then told my bf we don't like the dog cause all he does is bark.

And it just pissed me off more.. like idk im just super upset rn over these 2 things and if i tell my bf hell be like omg like he just doesnt care ab much.

They go we want a cat. ( which i cant stand )

If i say something tho to my bf ab the game. Hell be like welll than the baby isnt playing and it's like the baby isnt even born yet and the babys gonna be a kid and play outside.

Just erks me that they dont listen to me.

Advice? Opinion?