You could do them as more of family pictures.
I dont know if this helps but to save money i had my sister take pictures because she has a nice camera and shes free lol so we went to a few parks and i changed into a few outfits and people think they are professional lol she also looked up maternity picture ideas so we could make them a little more professional lol and i think you shouldnt feel guilty about it enjoy pregnancy how you can even if you didnt get to with your first.... I plan on getting my kids pictures taking once my son is here that way i can atleast have pics of both of them.... And i think thats more important making them both feel loved but i would definitely get some maternity pics done because you dont always look like that and they are cute lol
I didn't do it with my first but we did a family one with this one (just with a friend who wanted some practice and to build her portfolio). It is really nice getting some shots of your child hugging or kissing the belly.
I had mines done at the mall for $80 they came out beautifully although now I have to get extra copies they save them for 6months so no rush and yea u should get them done if u want