Is this normal?

my period was 17 days late this month & I thought I was pregnant but all the test came out negative. So, I'm not pregnant. I finally started my period but instead of it being 5 days long it ended on the 3rd day. But, today when I wiped there was a light pinkish red blood on the toilet paper. And it stopped bleeding this morning. I never been late and never had bled after I end. I'm just worried about my period. 😔 this app says my next period is in 22 days. So, I'm concerned about my period. And it had been a couple days since my period has ended