Me and my boyfriend had sex when I was almost two week into my birth control. One thing is I got sick one night an hour after taking my pill and it came back up so I technically missed that day. I had protected sex 3 days later but the condom ending up breaking to where my boyfriend finished inside me. I cant take morning after pill because I'm allergic so I just made sure to keep on track with my pills and hope for the best. 3 days later I start spotting and I'm on my second day of having a dark brown on and off flow. Which I'm suppose to start my monthly next week. Should I be concerned?