I am a bit confused and dont know what to do...

We are on day 5 without the nap. Generally his mood is ok. We get a few meltdowns here or there but nothing major so far (although yesterday after a shorter night he was getting on my nerves all day!)
So the past two night we have been having NW, either CO or he has been up for a while. His top two molars are not completely out yet and i cant figure out if this is teething pain or OT setting in. These are the last 5 days or so...
I set BT for 1930, but did 1900 the first night because he was exhausted after a 10hr night with nap the day before.
01/09
WU 0700
BT 1855
WU 0720
02/09
WU 0720
BT 1925
WU 0700
03/09
WU 0700
BT 1930
WU 0735
04/09
WU 0735
BT 1930
NW 0450-0605 started as whining in his sleep before he fully woke, gave meds
WU 0800
05/09
WU 0800
BT 1930
NW 2230 whining in his sleep
2300 DM before i went to bed
NW 0330 whining in his sleep, tossing and turning
NW 0430 whining in his sleep
WU 0715
So what do you think? Should i be doing a nap on the 4th day or should i stick to set bt and no nap? The meds dont seem to be doing much which makes me doubt its teeth but actually meds havent helped much with molars at all so i dont know...