There'snothing there which coulodn't resolve before becoming a major concern however parents instincts are a valuable tool so you should trust yours.
You would struggle to get a dx on those at 14 months though.
Most GP's have poor understanding of ASD: I'm doing an MA in it and the course lecturer also does medical school training, he said that it oftens amounts to 30minutes total, but some training schools have dispensed with it entirely. he asked one class what autism was and the reply was 'As it starts with aut, is it linked to hearing? )
The poiinting is relevant for triadic pointing- where the pointee points to something, looks at you, then looks back at the object. DS4 got that recently (in the last 4 weeks), he is 20 months. DS1 andds3 (both spectrum diagnoses) don't really have it yet, at least without help or oddity, so is a good indicator.
Parallel play is the norm at 14 months and beyond so I wouldn't let that concern you, in fact parallel play tends to persist until @3.
Please don't think I am writing off your concerns- I'm not and I know first hand what it is to not be believed. My guess is that you get the most help if you wait until 18months as there is a big drive for dx around that age (evidence suggests early dx gores hand in hand with better outcome). If you think there are issues then chances are there are, but fingers crossed.
Does he attend a nursery or similar?