Baby fever ... To soon ?

Okay so I just had my baby 7 weeks ago and she's so perfect and I'm so in love but I still have baby fever and I feel like I'm ready to have another but I don't think my SO is ready for that. I've tried giving little hints and asking if he wants more kids and stuff but how do I casually but really five into when he wants to try for baby number two or if he's ready now or what