Insomnia

Okay so I’ve had insomnia since I was 15 (I’m 19 now) and I do take trazodone before bed to help with sleep. But for a week I haven’t been able to sleep! I’ve even increased my dosage and I’m still up through the night. My period comes in 7 days. I’ve also been bloating, having fatigue during the day, tender breasts, and diarrhea. Could I be pregnant? Or is it just PMS symptoms? May I remind you that this sleep problem has never occurred around or during my period because my trazodone has always worked up until now.