Not rude, I think we were about 7 to 8 weeks along with our first when my husband and I told family and friends. Plus it was just before Christmas when we found out so it made a great Christmas "present/surprise" for our mothers. I am currently 16 weeks along with our second child and my husband spilled the beans at 6 weeks. I would have preferred he waited a week or two but he was just so excited. If others are offended by good news it's on them, not you. If someone mentioned miscarriage to me that early I might just start leaving them out of the "loop" on the baby. Which probably puts me in E-hell but these days I have no time or patience for "negative nellies".
Congrats to you! Enjoy your pregnancy and ignore others rudeness.