Keeping the baby a secret

So I found out yesterday morning that I'm pregnant. I was only supposed to tell my mom and sister, until the 2nd trimester so I knew I had a pretty good chance carrying to term. I've told like five people...

WHY IS IT SO HARD TO KEEP IT A SECRET. We've tried for this baby for two years. Everyone thought I was infertile. HA ! Suck on this! I can conceive after all.

But seriously I just want to enjoy this moment with my family, I have another 7 weeks to hold my "secret"