insecure about latch

so idk why but I'm worried my son isnt latched correctly. hes 2 weeks 4 days and we've been exclusively breastfeeding since he was born. he was born 10 pounds 8 oz and at his 2 week appointment he weighed 11 pounds 5 oz. he always poops and pees too. he obviously gained a lot but the majority of the time, his latch is wrong. he can't seem to get most of my areola in his mouth like they're supposed to, but I wonder if it's like that because his mouth is so small and my areolas are on the larger side. I hear him swallowing and he drains my breasts well, but something just tells me his latch is wrong :( please tell me I'm just being insecure lol.. heres a pic of him eating right now for reference.