Teething causing baby to wake up


My son had one tooth break through the 31st and the other the 1st. I believe this is what’s causing him to wake up during the night. He has slept through the night since he was 2 months old. He doesn’t act like he’s in pain when he wakes up but I’m assuming that is what initially is waking him up. He takes a bottle back to sleep.

Any ideas on how long this will last? I’m not complaining, whatsoever, just want a estimate.