Progesterone in Oil injections - tips/advice?

Laura • Unexplained infertility. Both 32. TTC 5 years. July 16` IVF w/ICSI. Aug FET #1 BFN / Sept FET #2 BFP!
I'm terrified of needles.  I thought Gonal and Menopur were scary as heck.  But after seeing how big the needles for PIO, I think I might pass out.  They are HUGE! DH has been giving me the injections, so I'm very grateful for that. But we start PIO next week, he's nervous, I'm nervous - not good all around. Any tips or advice?