Help!

Kay
I haven't had my period yet for the year 😰. Yes I've been sexually active with my boyfriend but we always use condoms plus I have irregular periods so technically I've only missed 2 months. He think I'm being over dramatic I guess( maybe I am) I took a test last week and it was negative. Do you guys think I'm over reacting? Do you think I should go get check and find out why I haven't had it yet.  I've seen my period once since I started having sex.(just started last year nov)