With DS my show was a proper blob all at once.
I'm now 38 weeks pg with number 2, and have had no discharge/spotting anything throughout, have had EXTREME braxton hicks (or maybe contractions) but not regular at all over the last couple of days.
Anyway this morning, I've had what I can only describe as a very mini show.
Do they sometimes appear (literally) in drips and drabs rather than in a big old blob?