Mates With Complications (Larry Stylinson AU A/B/O) {Mpreg}

Harry Styles is an Omega, but he pretends to be a Beta so he can find his mate through falling in love and not heat or rut. He meets the new student, Louis, an Alpha like he is described in books. Harry wants him, he wants him so bad, but he doesn't want to give up on his 'Beta Being' so no-one tries to take adventage. But when Harry goes into heat, and things happen, will mating be easy or complicated?

Warnings: boyxboy, smut, a/b/o-dynamics, mild drug use, Mpreg