My mom playing victim.

Recently my mom overdosed for the 2nd time in 2 years. Mix of drugs and pills. Well after not getting help the first time, and now reacting as if she wanted to die, i decided i no longer want to bring my kids to her house. She doesn't drive and we recently moved 30 minutes car ride away instead of the 15 minute walk. She never made attempts to come to my house to see them , i always brought them to her. Im currently 9 months pregnant and cant take any more of the hurt. Also i want to do right by my kids, why build this relationship if in an instant she is going to rip it away by continuing her bad choices. Its unfair to us all. My stepdad has a car but always has something to do or refuses to move his car. After the overdose, i met up with her and told her we will not be visiting her house but she is more than welcome at my house. I encouraged her to really seek help... well this was right before Christmas and she bought them tons of gifts and i did not take them over there. This was some few texts i got...

So New years eve i was off work , paid a short visit with the kids to get the damm gifts , because it will never end so i decided to be the bigger person. We did not talk, i left after an hour. I gave in.... now wondering once my baby is born if she will continue to insult me for not beinging the baby to see her etc. Im ready to cut her off almost completely... i go on Facebook and see she been sharing photos like this

Abd posts saying "missing my grandbabies" people commenting where are they. I just cannot mentally do this anymore for the sake of my family. She tries to manipulate the situation like i am out to get her. I explained to her multiple times how I feel and how this is just consequences of her actions. Im lost with what to do at this point because it differs hurt not having my mom , but it hurts having her around. Its a lose lose ... my kids always want to see her and go to her house because i made it a weekly routine to visit.... i stopped because god forbid she does die soon , how will i break it to them at 2 and 3 years old. I dont want them to get used to her if she is just continuing to choose drugs and possibly death over the family. And not seek any help. At least if she tried meetings or took any step, i would feel as though she cared.... anyone have advice ongoing ....?