Help :)

So I've always had irregular periods so it seems kinda normal and I've never been to a doctor about it .. but none that I can remember have been this far apart. My last period started in December and ended early January. My boyfriend and I are sexually active but at this point I would think I would have signs of pregnancy. Right?*I don't think I am,so I haven't taken a pregnancy test. I'm just worried and would like some insight I'd anyone else has this issue. Thank you :)