pregnant?

So I urgently need help,

so on the 16th of November I got my period, while being on my period my boyfriend and I had foreplay my period ended the 19th/20th. On the 27th we again had foreplay, but on the 2 of October I noticed that there are brown/yellow bloody things in my panties. I am also feeling more bloated than usually. I am also really tired

WHAT DOES THIS MEAN IS IT NORMAL? or can I be pregnant?