Trying to have baby #2. we conceived the last day of my period for baby #1. is this when i am ovulating? should we try for the same time frame again?

Not necessarily: Honestly, unless you have a particularly long period, it is a little unusual to conceive before you're done bleeding. However, obviously it CAN happen, as you know!!What I would personally recommend is start getting in the habit of using home ovulation kits to see if you can pinpoint exactly when you're going to ovulate. It may take a couple to several cycles but this will help narrow it down.