Is it ok to deny them?

Okay, so I’ve come to amends with not wanting visitors at the hospital... I understand the in-laws and some of my family are excited and although I’m not entirely comfortable with everyone seeing me in such way... I put it to the side and agreed with having people come. Anyhow, I really don’t want anyone taking pictures of my child... I really wanted to be the first to post on social media pictures of my newborn and I know if my in laws take pictures they’ll send them around or just post it regardless of what I say... is it weird or bad that I don’t want this? I just want to take my time with introducing my child to all of the distant relatives and friends of my so and I... I was thinking I’d have new born pictures done after I got home and then post those... but am I being petty when I say NO pictures please... like at all.