The sides on any front load shouldn't be anything you wouldn't experience on the cycle by week 4. If you look at the graphs, it only gets you to the high point you would achieve anyway, and not above it. It does sound weird though, taking 1200-1800mg/eq for the first 2 weeks and not having any more sides than you would normally.
However, if you were going to get sides, you will get them sooner if you front load, they just won't be any worse.