Light and Shorter Bleeding... Worried...

Lately no one has been giving any replies to any posts of mine but I’ll keep posting and being actively engaged.

This month is the second month I’ve had a lighter and shorter period. Last month and this month I’ve had pms symptoms and I’ve started around the expected time. However, instead of the 4-5 days (post depo flow) I am now 3 days and my flow is lighter than it normally is. We are trying to conceive and this worries me that we won’t be able to. Any advice or any input, please?