Pregnancy shirts

Is it obvious your’re pregnant if you wear a maternity shirt with cinched sides? I’m super bloated, my pants don’t fit (they were on the verge anyways) and my shirts don’t cover the rubber band trick. I’ve gotten maternity jeans for comfort and same issue. Band shows when I lift my arms. So I concluded I need longer shirts to cover and know I will need maternity ones soon anyways. I just wonder if people will know if I wear the maternity shirt. I’m 5 1/2 weeks along and don’t want people to know yet.