is your 5 month old suddenly starting to fight naps?

My LO is 24 weeks today and since yesterday he is been fighting some of his naps, he is been napping 30/45 mins since he turned 4 months and I've been trying to help him nap longer, i believe is a developmental thing and he eventually will grow out of it but now he is not even wanting to nap, he goes to sleep (day and night) independently, i have no issues with that but I don't know, is this supposed to happen around this time?