Opinions??

My son is 5 months old. Me and my hubby use condoms and a fews weeks ago the condom did break when we had sex and he nutted in me. We did not realize it until he pulled out and saw the condom. I took a plan b right away. Well two weeks later I had light spotting that lasted two days. Well a week later I feel like I am having crazy pms. I am soo bloated, always hungry, tired.. but no period. now kinda nervous. I plan on taking a test Monday, but no cramps or anything like that. Does it sound like pregnancy or maybe just stressing myself out?? The spotting has me wondering because I never spotted randomly like that before.