My BF came home this weekend and we slept together and i just got switched back onto a new BC pill YAZ but i use to be on ortho-tricylen and i only have been on it when he got here for like a week maybe.

He cam in me the three times we slept toghether. now im having werid bloating..tired..tender and almost feeling like swelling of chest and some random pains in lower abdoman.
Could i be preganant>?
please help? :-(