When to tell and how to hide?

Troi
So hubby wants to wait to share our news but we aren't sure for how long yet.  But I just don't see how we can hide it much longer. We have two daughters so this is our third.  Friends and family already know we are trying for for a baby.  I'm 5 weeks and bloated, my boobs are larger, I'm wearing baggy clothes, battling migraines again, tired, eating more than normal and obviously turning down alcoholic beverages.  Now I'm not a drinker but I've already had to turn down a drink in front of family, which when I did so with my first pregnancy my sis knew something  was up.  I have not had problems with migraines since my last pregnancy and here I am with those again. Im trying to convince hubby to break the news sooner than April.  Not sure when our first appointment will be since we are waiting on health insurance to kick in near late March. I'm hoping for a near Valentine's Day announcement.