Can teething start as early as 13 weeks ? My dd was sleeping for a good 4-5 hour stretch during the night , not great but I could function ok. The last couple of nights she has been up every 1-2 hours , episodes of screaming during the day , drooling and ear pulling . She does have silent reflux but that is controlled with medication . My son got his first tooth around 5 and a half months ....