I had protected sex with my boyfriend on June 28th. After we had sex, I saw some type of white stuff on him and he kept trying to reassure me it was his so then the next day I took the Take Action pill. I got my period on June 10th. Well, I had protected sex again on July 17th and that happened again so I took Plan B the next day and now today I got my period again this month. I'm worried I could be pregnant? Is this my actual period or is it the Plan B? Please help.