My MWs came to me for a one-day check, three-day check, PKU at two weeks and I went to them last Fri for a 6 week check (one week late.)
My family practicioner's nurse gave me a hard time about not being there yet, I called when he was three weeks old to verify about the PKU. She said he was a week late for his first check. I explained that my MWs handled everything up to 6 weeks and no way would I be bringing a young babe into a germy office for no reason. She didn't respond well, kept saying that it was just a 'get-to-know-him' appointment. Blah, blah, blah. Anyway....he's 7 weeks old now and we still have no distinct plans to hit the doctor's office unless he's sick. I do plan to go at SOME point, so that CPS wouldn't be looking over our shoulders if anyone complained down the road about no vax or something. Anyway, do what YOU feel is best for your child.
For me (and my DH,) best was this: We are very in tune with our animal/parenting instincts and they tell us that he is healthy, inside and out. If we had doubts or were not in touch with ourselves, we'd probably feel that we needed a doc to give him the thumbs up.
WAIT, WAIT...I just noticed your sig. You're naming your boy Jet? That's too cool. That's what we named our son and everyone just says, "What?" when we say his name....not in the
WHAT?!!? sense, just in the "I'm sorry, I didn't hear you. Please repeat yourself" way. I repeat, "His name's Jett" and they generally just say, "oh." I would have expected more of response, either positive or negative. All I have gotten so far is some gentle negativity from our family and "Oh, hi there Jett Travolta." from a fellow pilot. (Hopefully, very few know it's a celebrity name, since that's NOT why we used it, ack.) A few have just said, "Well, that's appropriate."
If you do go to the doc with your son, please have the AAP's print-out on caring for an intact penis. You have no idea how fast a nurse/doc can forcably retract their foreskin and cause them pain and possible scarring. That's a huge nono and while docs
shouldknow it, soooo many do not. They'll give you all sorts of detrimental advice on how you 'have to' care for his penis. It's hooey. Just be sure to check in on the "The Case Against Circumcision' forum for good information.

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And, of course, Congratulations!!!!