My office says to sign up around 20 weeks because the classes get full. I just signed up for the breastfeeding class on July 14th. She said there were a few more openings.
I signed up a couple weeks ago for the class starting at the end of August. They recommended signing up really early because they fill up, but the earlier class even still had openings, so I don't know.
In our city, they ask you to be signed up by 18 weeks. We waited a little longer, and promptly ended up on a waiting list, which now has turned out to get us in a class on a weekend around July 15th (whichever days Sat/Sun fall on).
Re: classes