Hi, If we are considering only your age the chance of conception is good as the egg count starts to drop in a majority from the age of 35. Having said that I would take a cautious step where you start the basic investigations now as you keep trying. Should you fall pregnant naturally that's great but on the contrary should you need assistance,  at least all investigations are done and ready. Intercourse twice a week when not bleeding is recommended. Make sure you're on folic acid supplement. Look at www.conceive.com - patient resources - pre conception care for further pre conception advice.  Regards