first time mommy!

im 15w+6 days, this is my first baby and im gaining weight and my stomach is poking a little but i feel like its just bloat. whats an estimate on when i will have a noticeable baby bump? and when should i noticeably feel baby? i feel twitches and flutters sometimes but not too often, i dont think its gas but when will i surely be able to feel its baby as well?