Re: When do you say ''enough" & start thinking of about adoption
Really I wouldn't look at it as an 'failure' and surrendering', I see it as an opportunity to give life a chance. There's already hundreds of thousands of beautiful children on this planet (from newborns to teens) that are looking for the exact opposite you are, parents. While it may seem like a disappointment that IVF didn't work, it could be a blessing in disguise.
I heard a story once about an adopted child that was asked to write a Christmas list -- he pondered on the subject for awhile then said "I don't want anything else, I already have all I could ever want". I like started crying as it really shows how much it means for this kids to be accepted into a family. It seems like something taken for granted, but there are people out there that will grow up and about 20% will 'phase out' (meaning they become adults before being adopted and never have the chance to grow up with a family).
Best of luck to you and all the best! :-)