Im so sorry for your loss Cupcake. I had one back in June and it is not fun, but such a common part of reproducing unfortunately. That is great that you conceived despite the hurdles, and fertility does increase after a loss so I hope to see you back in first trimester too.
I am debating telling my parents soon. I never told my mom before I miscarried with the last one, but did tell her about the miscarriage after, so she now knows we are trying to conceive #2. I was visiting with family yesterday and my cousin was pregnant and due in January (my previous EDD) and I ended up privately telling her about my loss and current pregnancy but asked her to keep it quiet! I may wait until 6 weeks because 50% of miscarriages happen before 6 weeks.
I have one CB weeks estimator but after reading how unreliable they are I think I may have to throw it out and not cause myself unnecessary worry!