We are trying for a baby. i am 39. Last month i did a test and it said i was preg.I bleed very bad for two day

this time no preg.four wk 5 days ped yesterday.so i did another test.again no preg.I have seen the doc and he did a test and sent to the hospital. he said if it comes back not preg he will do all the tests to see what is wrong.but the main one he said that has realy worred me is that he will do a menopause test.has anyone out there had this happen to them. And plz tell me i am not going though the menopause.I have two kids to my first husband. But none to hubby now.and we both are trying so hard.he has one child to first wife.