This feels like a nightmare can’t tell my parents :(

I’m 3 months pregnant and I’m 23 and living with my parents. I’ve seen my midwife and getting first scan on Wednesday. I’m terrified to tell my parents they’re very traditional and will show their worst side I just know it :( this is a living nightmare I keep waking up petrified. I’m terrified of my dad he is very sarcastic and even when I brought a hamster home my mum was pissed 😅 me and my boyfriend plan to move out but this is financially scary he has a full time job and I’m at university going into my last year when baby is due ahhh I feel so unwell this is stressful how do I tell them?