Half niqaabs

Q: Nowadays it has become a fashion to wear the "half niqaabs" and in this case the whole forehead is left open. So is it permissible for a woman that wears the niqaab, to show her eyebrows?

Irregular bleeding

Q: I would like to know how to work out my period as my cycle has changed. I still have the marina on. During these last few months I bled very little. For example I get a brown discharge for two days and then 14 or 15 days later I get a red discharge for two days. So basically throughout the month I'm bleeding for about four days on and off. How do I work out my period? I also get a whitish yellow discharge often. Will I count that as period blood also? This month I never bleed at all for about 22 days and then I bled for about 6 days. I'm very confused as I don't know which days to count as my period and which are my clean days. I want to keep my qadhas before Ramadan but I'm not sure on which days I should fast.

Exchanging naked pictures with one's spouse

Q: My question is that it has been almost a year now since my nikaah. But because of a few months more left in my studies my parents are not doing the ceremony to start my life with my wife. Now we text on phone and sometimes we get sexual temptations as well, so once in a blue moon we exchange naked pictures. She and I are both in love with each other. When I see those pictures while laying on my bed with my stomach on the bed because of those pictures and because of laying down I ejaculate as if I had sex. Is it okay in Islam?