Ok everytime I turn around in my apartment there is a lady bug??? Why?

I just moved into a new apartment in December and noticed so many lady bugs all over near my doors and windows. Then sometimes when I am laying in my bed, I can hear them hitting my window. The other morning, there was one under my covers, very very annoying. What does this mean. Is it a omen or something. Then I notice a lot of them at my job when I am sitting out side. Is it a certain season for lady bugs, is it a omen, are they attracted to certain smells or something.