22w pregnant and.....

Hello all... I’m 22w pregnant and still haven’t told my parents yet. I feel bad because they are so worried about me. I have lived with them until I was 23(I’ll be 24 next month). I’ve been away inky a month. I’ve come and gone one other time and things didn’t work out. That was for about 2months. But I wanted a change again and I decided to “run away” with my boyfriend and figure things out on our own. He has a job and far things are comfortable. I hate to tell them because I know they expect more of me but if anything it will worry them even more. I’ve moved 3hrs away in a different state so I’m not too far from them. But I feel like if I told them it will sorry them even more. What should I do? It ma been weighing on my heart heavily. I know I’m grown but being their ONLY child and used to me being home it hits different or them.