Really stressing out

My daughter is 12 weeks old and I’m pretty sure I’m pregnant again. Obviously this wasn’t planned. I’m really freaking out. I got a faint positive test this afternoon. I feel like I could cry. How the fuck do I tell my husband? He’s already said he’d scream if I was pregnant again. How do I tell my mom? She takes care of my INFANT. I still have an infant! How will I deal with the looks from people seeing me with an infant and a belly? How could I be so goddamn stupid?! It’s not like I don’t know how babies are made. Tell me I can do this. Tell me it’ll be okay.