So I'm 18, 19 in July. Single, but now working on things with my daughters father

My daughter is due October 3rd, and I only found out I was pregnant two weeks ago. Everyone I'm friends with knows, but I haven't told my family yet. I am just scared of how they will react. They don't all really like my daughters father too much because he can be mean at times. I'm trying to figure out how to tell them I am pregnant, would a text be okay? It's just for my aunt and then she would tell the rest of the family or my official fb announcement for my unclose friends and family would tell them. I just know I need to do it soon because I am getting a bump plus I want to start planning the shower