Not for this male. I had no problem with it -- heck, I was the one who had Riker and Troi first talk about starting a family, and the one who wrote the book establishing Crusher's pregnancy (although in that case it wasn't my idea).
It is a bit of a coincidence about the timing of their respective pregnancies. In fact, it's more of a coincidence than it might appear; Dave estimates that Deanna got pregnant on or about December 2, 2380, and I estimate that Beverly got pregnant on or about December 11, 2380. But we didn't plan the timing that way, so it's a coincidence in reality, and that makes me okay with it being a coincidence within the story. (Although the birthdates will be different, since a human-Betazoid hybrid fetus would develop at a different rate than a fully human fetus.)
And I don't find it problematical that both couples decided to start families at about the same time. I mean, to some extent, it was Will and Deanna's marriage that prompted Picard and Beverly to get out of their rut and become a couple, so a certain synchronicity is understandable. Indeed, I like the parallel -- even though they're following separate career paths now, their lives are still connected.
