Cheating?

Nicole • Mummy of 3💙💙💗 #4 due October💗
If your boyfriend spent all week with you but went MIA on the weekend, says he's coming over friday and saturday, sometimes sunday too, but then makes up an excuse on why he can't come which you can tell is just a silly excuse.. tells you he's at home 'chilling' all day but a few hours later you find out he's actually out with his friends.... would you say he's cheating? Or am i just thinking of the worst case scenario? But im talking EVERY.SINGLE.WEEKEND!😩