The whole drama of not going to temple during menstrual cycle had its own share of logic just like all such ‘old rules’.
Actually, all these ‘rules’ were made by wise people in ancient times with certain positive agendas, which were hopelessly transformed into mindless superstitions by general people through ages.
During that time of the month, women lose a lot of blood and there is a slight hormonal disbalance as well. Thus women are physically and emotionally weak at that time. To get some respite from the daily workload (which can become more stressful during the period), women were asked not to come out of their rooms. That is actually done so that she can rest all day. But with time, this ‘impure’ image of menstruating ladies evolved and though today, there is no difference in work stress being considered, but mindless superstitions of not going to temples, marriages etc. are still being practiced.
If a woman CHOOSES not to participate due to her personal discomfort, then it is totally understandable. There is absolutely nothing impure about it.
And no, I do not follow all these. Any day in a month is as regular as it can be when it comes to daily routine. (Of course, I take a day off from my work if I feel very weak and try to avoid heavy work but that is purely due to my physical comfort). I have participated actively in puja work in my house, offered pushpanjali in community pandals during Durga pujas, visited temples, helped my mother in daily sandhya arti at home and went for marriages and other auspicious occasions. My mother supports me totally in these.
I also do not understand one thing. Why do we go secretive about this? This is a normal biological process and a sub-system of the whole life generating (read reproductive) system. Should we be not proud of that? Why do we buy sanitary napkins packed in newspapers or black packet? Do we go secretive when we get pregnant? And do not we know that the menstrual cycle is a part of that?