Natural Childbirth

 Igros Moshe (Y.D. 02:075):Natural child birth. This that your wife wants to be fully conscious  during childbirth because she was told that the birth pains are reduced a bit by distracting herself. If you asked me I would not have advised this because birth pains are very strong and distraction doesn’t help and thus the idea is false. However if she really wants this there is no prohibition. .. Also you want to know whether the you can be with her during the delivery to see  things are done properly and to encourage and reassure her? If this is really needed I don’t see any reason to prohibit it and even if not really needed I don’t see that it is prohibited. However it is prohibited to watch the actual birth because it is prohibited to look at places that she normally covers when she is a Nida and the genital area is prohibited even when she is not a Nida. Therefore if you are careful not to look even by means of a mirror,  there is no prohibition.