no period! can you still get pregnant?

Jennifer
my husband and I have been trying for a year now! I have a 7 & 2 yr old boy. June was my last period me n drs have done multiple test and negative put me on provera to get my period going I had spotting for one day maybe a dime size back in august. so officially no period since June! do I still TRY or is it not worth the stress? I'm getting flusterated! anyone help?!?!