Trying to conceive since June of last year still no success, Can I conceive with absent periods?

Me and my husband have been trying to conceive since last June on September we Started hormones in order for me to menstruate the doctor gave me medroxyprogesterone which made me get my menstrual on time every month until december of 07 after it was conjugated pills and so on until I just stopped I wasn't getting my menstrual and the pills were starting to make me annoyingly sensitive and sickening I haven't had a period since March which now makes it seven months and Im wondering if I should go back to the meds were still trying to conceive. what should I do? Has anyone gone thru this? Is there Hope?