Misscarried @ 38 yrs old, TTC 5 years, now what?

RtG
My first posting, hello fellow TTCers! Turning 40 this year. Finally went to a fertility Dr. he recommends <a href="https://glowing.com/glow-fertility-program">IVF</a> for $20k. Said my ovaries look healthy with a fare amount of eggs for my age. Husband checked out as well. Since our miscarriage at 8 weeks almost one year ago we have not been able to conceive. Unexplained, grrrrrr.
What I've been noticing is the older I'm getting the more discomfort I feel when I ovulate. It lasts 2-3 days. Sharp pains from time to time, heaviness on each side of ovaries, nipples are sore, fatigue and lower back pain.  Could this be beginning signs of endometriosis? Even though Dr. saw my uterine lining and said looks healthy. 
Unsure about how much longer should we try naturally before we move forward with <a href="https://glowing.com/glow-fertility-program">IVF</a>. Anyone been in the decision making process yet?