so I had sex for the first time last week, he used a condom but it broke but he still pulled out before finishing. I was still kind of freaking out so I bought plan b the next day. Then the next day we got alittle heated and went at it again. This time condom didn't break. Now it's been 5 days since taking plan b and I noticed today some slight spotting. Not a lot at all but enough to freak me out. I've also been having a little stomach ache in the morning. Should I be worried about pregnancy or worried in general?