Late period

My period is late by roughly 4 days and I'm so scared I could be pregnant.

I've been super moody, super hungry, way more tired, and I've been using the bathroom a lot more than normal but I've also been getting cramps like I do before my period starts.

I've slept with a few different guys since my last period and I'm so afraid I'm pregnant and don't know who the father is.

I'm only 18 and don't even have insurance or a stable place to live right now...

I'm so scared.