Help me pleAse

I started my period on 9/4 ended 9/9 I've had sex with no condom , I've been with my partner for over 3 years we have a son . So we trust each other . So we've been having sex not often but here and their . He pulls out every time , and I haven't started my period till today, eve app says I'm 9 days late , should I get a pregnancy test or wait a little longer . ? Could it be my cycle changing ? I also have some clear discharge and sometime it smells like I've started my period but every time I check I don't and have clear discharge.