If you set your stall out now, you will find it much easier to get out fishing for the rest of your life.
But the secret is gathering enough brownie points, during every waking second when your not fishing.
Your missus is probably still tired and a bit emotional and hormones all over the place, so dont be sitting on yer a.rse all saturday drinking beer and watching rugby, then announce that your going fishing in the morning. Thats a level 5, level of expertise will come much later in life (im a level 6)

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Id say your a level 0 at present working towards a level one. Grovel as much as possible and agree to absolutely everything, then she will love you so much or feel sorry for you and you will be allowed to go fishing.
Either that, or buy her a bottle of wine and a chich flick and take the baby fishing with you.

But what ever you do dont put the pram in the boat