I was on the pill for about 5 days(sun-thurs) but I forgot to take them for 3 days(fri-mon) between those three days I had unprotected sex on monday I started spotting and tuesday I got what looks like my period, but my period isn't until 18 day from now. Can I be pregnant? I'm 18 years old and I have no women in my life that could help me get through this please help !