Late again!

It’s normal for me to miss a period but I haven’t missed one in about a year and this time around myself and my s.o were actually trying to get pregnant. Now I’m 17 days late. No period but no “normal” signs of pregnancy. I don’t want to waste money on a test because by now it’s hard to say if I just missed it or what. I have felt different lately (hot flashes, tired, tons of headaches) but I figured it’s because I’ve been sick for the past 2 weeks and haven’t been sleeping too much. I’m not sure if I should test or just wait to get my period again.