IUI fail

Jennilee • TTC # 3 since June 2014
Hello ladies! I had my first IUI on 3.4.15 and it was a bust. I only have one Fallopian tube due to an ectopic pregnancy back in 2006. My RE wants me to try 2 more IUI's. If I do that then my DH and I won't have funds for ivf if it would come to that. Any advice? Would you try 2 more IUI's or go straight to ivf? My RE said it's about a 30 percent chance of pregnancy with IUI and about a 60 percent chance with ivf. I'm 30 years old. Thanks for any advice!