Considering IVF

Cycle 2 of TTC for baby #2. For baby #1 it took about a 7-8 months. I tracked OPKs and calendar for the first 6 months then I gave up and naturally got pregnant on 7th or 8th cycle of trying. I’m older now and my periods are regular but only last a day so I have a feeling I’m not able to get pregnant naturally anymore. I’m going to see my Obgyn next week for an annual and I’m going to bring up my concern. I know it takes about a year or two to conceive for a healthy couple but the fact that it could take that long worries that it’ll never happen and it gives me anxiety that we are older and both probably not fertile anymore. Should I start supplements like Pink Stork? Wait a few more months? Or can I start IVF right away?