Wooooooooooooo! Thanks for the shout out
Tales 
Anyway during a time period of Spider Man known as the
Clone Saga, angry unrelatable Peter Parker was about to be switched with the ever so optomistic likeable Ben Reilly. Marvel wisely decided it would be better to have only one Spider Man running around and thus a reason for one Peter to leave was created.
A kid
In Spectacular Spider 220, MJ announced to Peter that she was pregnant. The general idea being that raising a kid would be Peter's new responsibility and he would give the reins to Ben, who would carry on the Spider legacy. Unfortunatly fan backlash towards the whole situation caused Marvel to shift directions and abandon the initial plan, so during the Revelations storyline, ASM 418 in particular, MJ went into forced labour and "lost" the baby, however various moments regarding Norman Osborn, a hospital linen basket, Alison Mongrain and so other shifty things made it seem that the baby had been kidnapped. Originally the idea was to have the baby returned to the Parkers just before the reboot, and Tom Defalco set things up that way in ASM 435 when Kaine ambushes a group of Scriers and retireves what everyone had assumed was Baby May. Unfortunatly new creative teams took over and Kaine, Baby May, and the Scriers we're sent into creative limbo.
However Tom Defalco liked the idea of Peter so much that he decided to create a new book revolving around Peter's daughter in an alternate universe. Essentially everything there happened as it should have in the 616 Universe, with Kaine returning the baby to the Parkers and young Mayday Parker growing up and carrying on her fathers legacy as Spider- Girl. including using her uncle Reilly's costume. As well in this world the Parkers had a son named Ben midway into the series run.
