Sleep issues

Amrita

So I sleep trained my son at 6 months and it has been a life saver for our sleep. He only woke up in the middle of the night if he wasn't feeling well every once in a while. But for the last 2 weeks he's been waking up screaming in the middle of the night. The first week I would give in without a second thought because he has been teething terribly (2 canines and 2 molars). So I would just pick him up out of the crib and put him in our bed for the rest of the night. The second week it was the same deal but I think the lack of sleep and sleeping in awkward positions was really getting to me and my husband but we dealt with it because of his teeth. Now we're on week 3 of this and I'm losing my patience. I love my baby and I don't want him to be in pain but I'm starting to think that he's just waking up only to get into our bed and we've created a bad habit. We tried to have him cry it out but after like 15 mins in the middle of the night we caved in and he ended up back in our bed. Anyone else going through this or have any advice?