When to seek help....

At what point would you decide to go see a doctor about not being able to convince?

We had our first baby 12/03/14 no major complications. I was on BC for 3 months after i had him (stopped taking them in April '15). I breastfed my son until October '15.

The doctors gave me a clean bill of health after having him but for 8 months i had the worse pelvic pain ever, it was so bad i wasn't able to leave bed sex was(and still is sometimes)verypainful! I saw 3 different doctors and none of them would do anything to figure out what was wrong. So for 8 months i sat around in the worst pain in my life. Then it all just stopped(aside from ovulation time and my period when i hurt like hell)

So we've been TTC for 9 months now. I'm kinda getting worried that something is wrong with me.

But i was wondering when should i go see a doctor about not being pregnant yet. I don't have any insurance so I'll have to pay alot outa pocket :/