Firstly, results of treatment for infertility
are better in stages I & II of endometriosis
than in stages III & IV. Moreover, the recurrence rate is more in younger women than in older women. You have not mentioned your age, but anyway, you should be safe now that you got treated recently. Natural conception occurs in 2% of treated people and the conception rate goes up with COH/AIH and also IVF/ET. So, wish you good luck.