I have 3 children from two different relationships - my first I had at 18 years old (his father was and still is a very trustworthy, good dad) so my eldest went to his dads every weekend from being 6 months old - when I stopped breast feeding. I have to say, I thoroughly enjoyed my weekends - as I was young and it was my chance to act like a teenager every weekend - though I worked and looked after my son through the week... I will say, I feel like I didn't appreciate my eldest as a baby as much as I should have - but I have forgiven myself as I was young and unprepared...
Fast forward 7 years - 2 young children and a marriage ending - and I found it exceptionally difficult to relinquish my 2 youngest children to their father. I had the privilege of being in the fortunate position to be a SAHM to them (not a luxury I had with my first) and being older and wiser, I was ready for them - my wild weekends were conducted in my younger years, so I had and have no urge to be out and/or away from them/my responsibilities.
However, my set up is as follows. DS1 now goes to his dads every other weekend - I like a weekend JUST with him while my 2 youngest DS2 and DD are at their dads.
DS2 and DS go to their dads every Wednesday and Saturday evening (he lives just round the corner, so close to school) and every 4th weekend, they stay for the full weekend (coincides with a full weekend my eldest is at his dads).
It's a lot of time away from them, but I prefer to think of it as time with their dads - who are equally as important to them as I am to them.
I feel very fortunate that my children's fathers are EXCELLENT and devoted dads. I have very amicable relationships with both and we try to make the best out of a bad situation for my children - who are paramount.
I didn't split up with my two youngest DCs dad until they were 3 and 4 years old - I think that made it easier as I doubt I would have let them go when when they were babies, as easily as I felt I did my eldest son - I feel like this is purely to do with the fact I am no longer as self absorbed as I was as a teenager (no disrespect to any teenage mums, this is a reflection upon myself purely)..
Some days I wake up and think 'thank goodness! This mama needs an evening of peace' - other days I dread the 5pm knock at the door as I would like nothing more than an evening on the sofa, snugged up with a film and treats and my 3 beautiful babies :)
I know my baby-dads look forward to those evenings probably MORE than I do, especially my ex husband - who ADORES his children and doesn't want to miss a moment.
I still regularly have ex husband round for dinner and vice versa, and we alternate Christmas between his house and my house - neither of us want to miss those magical Christmas mornings with them while they're young - I wouldn't deny him and he wouldn't deny me.
It's worth noting that I have a partner, but he is very respectful of the above fact and he knows that we have these arrangements purely for the benefit of the children..
I think I've ranted.. Sorry if it's a bit garbled, but typing on my phone as opposed to my laptop.. :)