High school teacher moms! When did you tell your students you were pregnant?

TW: miscarriage

After multiple losses, I am about 10 weeks pregnant with my second rainbow baby. With my son, I didn’t have to tell my students about the pregnancy until 20 weeks when the new school year started, but after five pregnancies in under four years, my belly is starting to become obvious. I was hoping to wait until 14-15 weeks, but I don’t think I can hide it much longer.

Has anyone told your high schoolers this early? What was that experience like?