Pregnant & sex okay?

.. so my bf & I had sex tonight.. I just found out I was pregnant last week. I just want to know if its still okay for us to have sex.. I haven't had my 1st check up yet.. I'm waiting for the doctor to call me.. my bf is (bigger than average) and tonight he would have moments where he goes really deep really hard & it hurted... I was worried cause of the baby.. should we lay off until I talk to a doctor?