Ttc for too long

Sheri
My husband and I have been TTC for 3 years off and on I was diagnosed with uterin fibroids a year and half ago. I'm 35 now my husband 30. We are treating the fibroids at home in hopes they heal on their own which is possible. Last 6 months I have had a very regular period like I did before I had any children. I just started using this <a href="https://play.google.com/store/apps/details?id=com.glow.android">Glow app</a>. Hoping that it works. We want a baby boy now after 3 girls. I am currently on my period now. I usually go for 5 -8 days. Lately its been 5 days today being day 5. We have to make a trip out of state for 10 days. When would be the best time for ovulation to try and get pregnant. Any advise or tips would be great lol thank you.