I too had a suspected ectopic back in 10/10 after 2 months of TTC (I had been charting, though, after being off BCPs since 3/10.) No risk factors either but it was luckily caught early enough to receive methotrexate. I had an HSG in Jan that wasn't bad at all and showed everything looked good
Lots of people say that it's easier to get preggo in the couple of months following the HSG but so far no such luck.
It's been so frustrating to have gone from getting preggo so quickly to being the couple TTC for 10 months (well, 8 if you take off the 2 after metho.) I'm in my TWW though and keeping my fingers crossed!
Good luck with your HSG next cycle...I have a friend that had a short LP and was able to have 3 children with progesterone supplements AND clomid (she had mulitple MCs so she was ovulating on her own, just late in her cycle.) Does your FS think you might need clomid?