Im sad i want to cry

To make it shorter ; i had a baby on 2007 on 2010 i meet this guy since then we have been back and forth (sometimes together sometimes not) never used BC , never been pregnant again but he have 3 kids this year we got married so we have been together and trying for a baby because he said now we are going to be together for the rest of our lifes . So since i have never used BC and never end up pregnant in seven years I assuming I can't have babies any more , now we have 5 months of been married and im not pregnant still and he want a baby but he doesn't want me to go a fertility doctor he always bitching about money(like he have money but not for doctors or any of my things but he has money for him)Im so sad i guess my 10 year old daughter will never have a sister or brother i really want to have another baby . I don't know what to do or try to end up pregnant naturally :( .. sorry i use google translate since English is not my first language. I just wanted to get all this fellings out.