Teething

Hi my LO is 7mth n 2 week old. She is having milk strike n prefer latching.. And she keep waking up at night crying.. I not sure is it a sign of teething? And she Don do morning nap.. She only nap in the afternoon for 2 h.. I buy the little one program hopfully can learn how to let the baby self settle to sleep but she keep crying.. Dunno what to do now..