Not enough wets?

Ba
baby girl is 11 days old. She's only had 4 wets 5 at the most since 10am its now almost 6pm. She's had 4 poops that all look normal.I'm nursing every hour to two hours today and have gave her 1.5oz out of a bottle today so far. Her doctor wanted me to supplement with an oz after each time she nurses but the LC and I agreed only in the evening and whenever she seems extra fussy. Should I be concerned about the lack of wets she's had today?