Sleep regression?

Vanessa • I'm a 24 year old momma of three. Mia 6, Liliana 3, & Benjamin (newborn). I'm a huge Disney fan, I believe in God, & I'm married to my middle school sweetheart. 💕
So my son has been a pretty good sleeper since birth. But recently, the last few days he's been waking up an hour after going to sleep. Then waking up again around 1 am and again at 4 or 5. Is this sleep regression? Sometimes he fights going back to sleep and I have to keep soothing him and giving him the paci until he finally falls asleep.