Sleep Regression

Sarah • Married 5/31/14 Started trying for a baby 5/31/15 Chemical pregnancy 6/23/15 Pregnant again due 3/29/16
My son is going through a sleep regression and hasn't slept well for a week. I keep reciting my mantra "this too shall pass" we started gradual sleep training about an hour ago because he's been up hourly tonight. I feel so bad. Anyone have any advice or want to share their experiences?