After managing a point and a single goal in their opening two Premier League games at home to Tottenham and away to promoted Cardiff, the Magpies are now home to Chelsea, away to champions Manchester City and home against Arsenal over the next three weekends.
But Lascelles says: "I wouldn't say this is a difficult period at all.
“We'll get through these next few games. We've got a big squad and good players in every area."
“There's no need to panic," added the 24-year-old. “We started last season with two defeats, so at least we've come away from Cardiff with something.
“There's no point dwelling on the negatives. We have to stay positive."