It's interesting that one of the models featured in Pregnant Girls 2 is much further along in the first volume, but chronology is not a selling point with this fetish, um, probably.  (Perhaps some viewers are solely into the whole documentary-like time-lapse quality exemplified by a lot of preggers lines, but let's face it: That is sick.)

Very pretty, modeling-genre tape, with loads of fecund fillies parading around, rubbing their distended stomachs, taking off their clothes, and generally lolling about in a sexually-charged state.  Some of the scenes are marred by interview-like interruptions, and energetic the tapes are not; but they make for some nice viewing.