Feeling guilty over wanting family photos

So, like most men my husband isn't big on pictures...but I am, and we likely aren't having any more children so my March baby is my only chance for this stuff And I really want professional photos done occasionally. I wanted them at 6 mos and 1 year but he nixed that claiming it would be silly because he wasn't stable when sitting up and couldn't stand etc. So here we are at 7 mos and my little guy is sitting, standing, crawling, growing so darn fast and again I'm begging for some damn family photos. I finally got him to agree to show up and smile but now I feel guilty for pressuring him. Does anyone else have this experience with their husband? Do I just need to let it go and accept the fact that I'm getting what I want?