Expert Q & A Answers About trichomoniasis and pregnancy

Did I get trich because my boyfriend is cheating?

I’ve been dating a man for two years...we have one child together and another on the way. About six months ago, I found out I had trichomoniasis. My doctors treated it with an antibiotic. Is trich an STD? Can trich hurt my unborn child? Did I get it because my boyfriend was sleeping around? I feel sick with distrust of him.