I'm so sorry for your loss (((Hugs)))
I had both the surgery for a ruptured ectopic AND the metho a month later when my numbers wouldn't go down all the way. The metho basically made me lose my appetite for about a week and my stomach was sore/achy all over but it does get better. Make sure they follow your hcg #'s all the way to zero and remember it's common to see them rise at first. If you have a lot of pain, feel free to bug the doctors to check you out to be safe! It's what they are there for!
As far as encouragement- I think I can help ;) It took me 2 years after my ep but I DID get pregnant again. I'm currently 20 weeks with a healthy girl. I was a bit different though- I had lost a tube and had wacky ovulation the whole time so it took longer than "normal".
If you're worried you could always request an HSG after your first AF to make sure your tubes are clear and ready to go for ttc. I think those are smart for every ep survivor really.