he wants to cum inside me

I'm not on birth control but I'm open to this suggestion however I will not do it until I'm on birth control. My options I'm considering on getting is the pill and the patch. How long does it take for each to be effective and which one would you recommend and why? Or would the shot be easier and more convenient ? Should I let them cum inside me if they are not my boyfriend? he's my fuck buddy and guy I lost my virginity to so I am clean. How do I ask him to get tested without sounding like I think he's dirty ?