So I work 4 days a week for 4 hours per dayn(7am-11am) now my sister kindly watches my daughter for approx 2 of these hours a day totalling about 8hours per week.. no need to feed my daughter or anything mainly just letting her play with her daughter in the play room .. there both 2 years old. Now I'm currently 6 months pregnant with baby number 2 and all of a sudden my sister is asking me to watch her daughter more and more.. it started off as fridays .. now it's Thursdays for 5 hours and Fridays for 5 hours with the odd 9-6 day thrown in on my days off! Now don't get me wrong I'm happy to help but when will it be acceptable for me to say I can't do it anymore! I'm going out of my mind and I can't look after them I'm exhausted! My neice is not the easiest of children she spends most of her day here crying for mummy or destroying my daughters toys (pregnancy hormones is making this bother me! Lol) or climbing on top of every bit off furniture she can get near! So I literally have to run after her the whole time she is here! Then cook her dinner feed her again.. a huge task as she is possibly the messiest eater I've ever seen! Please don't take this as I'm neice bashing obviously I love her to pieces and wouldn't change it but I just want to give an insight to the chaos!! So yes opinions on if I'm out of order for feeling like this and when can I say no more!!! I'm loosing the will to live!! Thanks x