Opinions wanted :)

Hi I'm going to be 32 in Oct! I have a 2 yr old son soon to be 3 in Sept! I had an ectopic pregnancy May 2013 which ended with the Methrotrexate shot and was cleared ending July! Had regular 28-30 day cycles since Oct 2013! I've been "trying" since then for #2 with no luck! My doctor wants me to do the dye test in Oct if I'm not pregnant by then! I just started using opk June 2014 and got a positive on 06/27 (cycle day 17) and 07/26 (cycle day 16) now that I'm looking back at my calendar I wasn't really BD'ing around those cycle days (granted it was around the 16/17) so would you say we've only been TTC since 06/2014?!? And has anyone else had an ectopic pregnancy and got pregnant afterwards on their own? My ectopic was so strange even my Dr was shocked! Any info would be greatly appreciated!