Is it possible I'm having twins, or am I just crazy?

About 3 years ago I was diagnosed with PCOD. I was having a terrible time getting back to normal after taking Depoprovera so my doctor prescribed me Clomid, which I took for an entire year to get my cycles back on track. It's been quite a long time since then and now I'm proudly 9 weeks pregnant. Anyway, my actual question is, even though I quit taking the clomid. Is it still possible to conceive twins? I can feel flutters (not gas) way too early, my breasts have grown for mosquito bites to dolly parton in only 9... almost 10 weeks... but I just have this feeling there's more than one baby in there... am I going crazy or can this really happen?