TTC for Months and only BFN

Help ladies.. I’m feeling beyond disheartened. My fiancé and I are both 34 years old and have been trying to conceive for 5 months now. I did have an iud (kyleena) inserted for 3 years before we decided to start trying, but have had regular periods since removal. My fiancé is also a previous smoker (spliffs) but he has completely stopped smoking for 4 months now. We have been trying to do everything by the book: Healthy lifestyle, <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> with OPK, and lots of baby dancing especially during peak ovulation. We both want a baby so bad and ideally before I turn 35 next June. I’m so scared that we aren’t going to be able to conceive since I have not gotten pregnant yet and know 💯 I am ovulating and baby dancing during peak ovulation. It doesn’t help that I have two close friends who have announced they are pregnant and both said they conceived on the first cycle of trying. I am beyond excited for them but scared that since I haven’t been able to conceive yet, means we are infertile. I am 13 DPO and another BFN and starting to get sign of AF arriving and I’m just feeling really disheartened. Every BFN is full of such heartache. Has anyone shared a similar experience? How long should I wait before reaching out to a fertility specialist?