How to stop bugs from moving with me.

Please no judgement or criticism but me and my fiance have been staying with his parents since May because we fell on hard times. We found out while living with them that I am pregnant and high wrisk due to complications and rare abnormalities so I've been on bedrest/ pelvic rest . We didn't know this and we'rnt warned before we moved in even though everyone here was fully aware of the situation (His parents and 4 brothers, one of his brothers girlfriends and her baby.) But there is an infestation of fleas, bedbugs, Ants, and roaches and I'm talking INFESTATION. His parents and apparently everyone else here are completely insane and refuse to do anything about the problem we bought bombs even though I insisted on an exterminator and everyone agreed to stay outside for 4 hours and let it air out for two like the bombs read. Instead they opened the door after one hour and immediately went inside and basically forced me to come in as well, exposing my first trimester fetus to all different sorts of concentrated pestisides. There is also radium in the water (radiation) and for some reason everyone thinks all these bugs are "A fact of life " as they say We'll I'm not going to rant about their stupidity any more cause I could go on forever and trust and believe it gets much worse. We've finally gathered the money to move out my fiance got a good paying job and I need to know how I can move our stuff without moving all the bugs, we've already decided on leaving the bed along with all furniture and only bringing clothes/ material things (perfume, games, TV, lamps, stuffed animals, baby stuff) along with us. We're bagging up all the clothing and going to a laundromat before we even go to the new place. But how else could we prevent bringing these pests along with us? It'll be hard the first month we will have zero money $0 zip. No bed, no food, hopefully we can find a pantry or something around here that can help as I am 3 months pregnant and obviously can't go a whole month without food. I only just now turned 18 there's 6 people in the house that are Chainsmokers that refuse to smoke outside and purposely smoke in the same room as me claiming the smoke "will not hurt your baby, I smoked and drank all the way up until 8 months with all my pregnancies and they all ended up fine" and that's quoted word for word they believe cigarette smoke is healthy for a child and since I don't smoke they insist on hotboxing whatever room I'm in. If I ask them to stop they'll all scream and yell that I'm trying to alter their lifestyles they've also taken my wic and my food stamps from me they applied my food stamps to their card without permission and I don't know how to remove them and get my own card they claim that the state of Missouri doesn't give extra food stamps for pregnant women so I'm getting more with it on their card but I don't get anything out of it they spend my stuff they also signed me up for disability so they can have my disability check as well claiming these are all "payments for letting us stay" I am capable of getting disability as I've spent the majority of my childhood in mental hospitals for attempted suicide self harm and anxiety attacks I suffer from PTSD due to tramatic abuse I've experienced since I was a baby as well as terrible social anxiety and chronic depression.