Should I even try?

I’ve got stage 4 endo

TTC 15 months - no success at all

Had a lap/dye 2 months ago

My tubes are beautiful and clear

If we don’t have success this cycle, my Dr. is recommending a medicated IUI

I ovulate every month, thought not consistently on the same CD. Cycle length tends to

fluctuate between 25-32 days

Is it even worth it to spend the $1,000 (give or take) to try IUI if my endo is this severe? It would be medicated, possibly with injections

Everything I read tells me that the percentages of success with endo this severe isn’t really much different than trying naturally which clearly isn’t working

I won’t want to put myself through the mental turmoil of more negative tests or waste my money if I don’t have to

Should I push for IVF? Should I give IUI three chances?