Pregnant after methotrexate

I was treated for an ectopic in June and was told by the doctor to wait 3 months before trying (she is not an ob). So 8 weeks later (now) I’ve been having pain and had an ultrasound. I found out I still have a mass and was referred to an obgyn. He didn’t seem concerned about it and said it would resolve on its own and said I didn’t have to wait 3 months to ttc. How many of you had a heathy pregnancy and baby after methotrexate and did you get pregnant right away? I’m waiting to try after my next cycle.