Hi there,you must be going through difficult time right now,especially if your pregnant,am in slightly similar situation to you.Been with my fella for 2years,we argue alot,mainly about him and his mates,i love him to bits and do see future with him,but we constantly argue about the same things-which is tiring.I was married for 13 years,have a 7 year old,my current b.F is great with my son,better than his dad,but in some ways very immature.For some reason men think its their right to just bugger off with their mates when it suits them.Hes done that on more then one occasion-dont have problem with him seeing friends-but you would think one night is enough,he prolongs it over a whole weekend sometimes,which really angers me off.Dont know how often your partner does this,but if now your pregnant,could understand why you fed up.At the end of the day,hes the father to be of your baby,you have to get things clear between you,i think,before baby arrives,otherwise he will take the piss still.Does he know your pregnant,you didnt say?One thing you are guarenteed of,he will have a huge wake up call when baby comes,maybe he will change then.
I have learnt from my r,ship that its no use just being pissed with them-men dont respond well to ranting at them-think it makes them do it even more,sit down with him and tell him how unhappy you are,i have written a letter before now,this away they read it couple of times and it may sink in more.
Wish you good luck-remember-you deserve to be happy,for you and your childs sake :d