Felt baby’s movements at wk 16 (first pregnancy too), I didn’t have a visible bump throughout my pregnancy and I gave birth at 40wks to a babyboy weighing 3.002kg I still rmb the nurses were asking me if I’m sure I’m pregnant all the time even when I was about to deliver … but so long as baby is doing well shouldn’t be an issue and all the checkups are going well , if it’s making u worry can check with gynae too! For a peace of mind