Carb intake?

Check your other macros.  Be sure you are not consuming too many calories, sugars or proteins. You can also incorporate intermittent fasting to help.

being under your carbs is ok.  just make sure you get all your protein, only eat as much fat as what makes you feel full.  If you have been on keto for a while, expect a stall.   I once stalled for 2 weeks.  I finally did an egg fast to break the stall.  Having a stall is normal so don't give up.