Help please

Cecilia

I’m 44 days late and I have take pregnancy test but they are negatives and also my periods are always regular and yes we did have unprotected sex two times when I was on my fértiles days but I don’t know if I’m pregnant but at first my period was supposed to come on September 4 and I was having cramps and everything like my period was coming that was my thought but then it didn’t come and now I’m 44 days late I don’t know what to do?