Fertility treatments?

Ashley • I`m a SAHM of a 1 1/2 year old girl! Been married for 5 years and try for # 2!
Me and my husband have been ttc for 8 months. We have a two year old daughter but it took us four years to concieve her. My question is why is it acceptable to ask my OBGYN for fertility help? What are the steps I need to go through before? Any words of wisdom would be helpful. Or other remedy anyone knows about!