Ovulation thoughts

Mary
So, I'm entering month 4 of TTC. We've really not been having sex before my ovulation period. Think that's bad, or it's fine as long as we do during? Is of better to have sex every day or every other day. Final question, do tour chances decrease if you have sex at night vs morning? I already have 1 baby who came quickly. Now I'm quite frustrated and feel like I don't know what to do:(