There's a similar British movie....
There's a film called Metroland that is extremely similar to this movie. Metroland came out in 1997 and stars Christian Bale and Emily Watson as young couple Chris and Marion. They have a baby girl and are living in the UK suburbs in the 70's I believe.
Chris has a friend named Tony and the two of them used to have wild adventures in their youth. Tony is still romping and comes for a visit much to the chagrin of Marion. Chris has hallucinations and flashbacks similar to Kevin Bacon's character in this movie. I will say flashback sequences take up a larger part of Metroland than they do in She's Having A Baby.
Both movies also have very similar themes of the main characters feeling dissatisfied with the way their lives turned out until a reckoning point comes. I won't spoil Metroland by telling you what it is, but its different and not quite so dramatic as She's Having A Baby.
She's Having A Baby is currently available on Netflix to stream. Sadly Metroland is not anymore. However, anyone who really liked this movie should check out Metroland. :)
Don't be ridiculous! Jack would never die without telling me!