Should a mother ever be allowed to disown her child

So I’ve grew up in care for 8 years and just left I went back to the town my family live in my family claim to be religious Muslims yet they don’t pray or go to mosque so there quiet strict about rules they always go on about how people will talk about them and it’s embarrassing for them to walk down the streets non stop and how I should be at home for 9 on a night even tho I’m 18 years old and I live on my own well apparently one of there freinds seen me out at 1 or 2 in the morning so they started arguing with me saying it’s embarrassing I’m a women why have I been out at that time of night and they don’t want anything to do with me I’m not supposed to talk to boys drink or anything but I’ve grew up with a British family for 8 years so I blurted out im 6 weeks pregnant I feel so alone and depressed right now they want me to leave town because I’m pregnant and I refused now I don’t know what will happen but I’m so confused excited and scared right now what should I do when I told my mum she said to me so ur pregnant drinking and taking drugs like bitch all ur kids where taken of u I feel like she’s gunna try and ruin this pregnancy for me i don’t take drugs I used to a long time ago and I don’t drink anymore either maybe just the odd glass of wine but I haven’t since I found out I was pregnant and I haven’t took drugs in years what do I do