Weird random symptoms? Or possibly pregnancy?

I'm testing today after work but i just wanted to see of any other ladies experienced this.

My period was due 3 days ago and i missed it. What's weird is that i had all the symptoms of my period. Cramps, backache (but worse) gas, bloated, sore boobs. Like my period with no blood. My periods only last 3 days and yesterday (what would be my last day) all the symptoms stopped.

Now i just has weird gas bubble but cramp like pain through my whole pelvic area. OH and last night this threw me off guard....i had an entire plate of pasta and a bowl of veggies with milk. Literally 5 minutes after i eat my stomach is rubbling of hunger 😲 there was no way i could possiblity be hungry but i was!

Any clue why the PMS went away? If i was pregnant would they just stopped like that randomly?