Should I test ?

I've had a weird period last week first day spotting next reg then spotting again then completely stopped period usually is 5-6 days I'm peeing back to back can't even hold it in , gassy , and bloated. I did have unprotected sex three days out of my fertile window and had couple days later After ovulation I became very dizzy weak had to throw up but inever did the day I thought was my period I through up out of no where getting ready to leave out of the house