Unsure if I’m pregnant or...

So I’m unsure if I’m pregnant or if this is just something that happens after miscarriage. I had a miscarriage at about 5 weeks in the beginning of April, bled for 7 days just like a normal period with a few days of spotting after, then that “cycle was 31 days started on the 30th of April, but now I’m 3-5 days late and I took a pregnancy test and it’s negative. I’ve been having cramping like I’m on my period but no bleeding, has anyone else experienced this or should I take more tests.