No orgasm yet

I've been sexually active for a little over a week (multiple times each day) . I know that's not a long time so I'm not giving up, just need advise. My husband is incredible and so patient. Spends forever on foreplay and oral sex. I get super wet and turned on. Everything he does feels amazing and sometimes (usually if I'm on top) I get seriously SO close to having an orgasm and then the feeling is just gone. We have great communication and I tell him what feels good. We've tried lots of positions. Anyone else experience this? I'd like my first orgasm to come from him (not a vibrator) he's dying for me to experience one but doesn't know what else to do. Any suggestions?