Dry heaving

Julia • Met my husband 11.14.07 Married 5.15.10. Ended BCPs 6.13. 1st MC 3.1.15 2nd MC 6.17.15 Baby Girl Born 7.9.16

I have progressed from just feeling nauseated, to gagging, and now I've started dry heaving. I am so happy to be feeling sick this pregnancy because I know it's a good sign, but I have to go and babysit for my brother and sister in law tonight and tomorrow and we aren't telling anyone until Christmas just in case.

Anyone have any good excuses for why I might me gagging/dry heaving at their house?