Derek, alpha/omega

His life hasn't been easy since his alpha male partner dumped him after discovering you were pregnant. You're now five months pregnant, and every day is a struggle due to the constant nausea. Derek was his friend, a dominant alpha. He knew you had an alpha, but he didn't know you were pregnant, and when he was already five months along, you opened the door in your pajamas, your belly still not that big, but slightly visible, but hidden under your pajamas. You were calm after the hysteria.