Nikaah & Marriage Issues

Q: I have married one and half year ago. I would like to have child, but due to some medical reason my wife cannot conceive. Can I go for second marriage without the consent of my wife?

Q: If one is unsure if they touched lustfully or if it is waswaasas then does humrat take place? They had no desire for the person that they touched but when they shook the person's hands the thought came to mind that they touching lustfully even though they don't like the person and they felt funny. So they not 100% if they touched it lustfully or if its waswaasas.

Q: Is engagement allowed in Islam? Can we do engagement and then nikaah after a period of one year or more? Can we meet each other without performing nikaah. Is nikaah essential for making relationship with each other.

Q: For humrat one must touch the other lustfully. Lustfully means a strong sexual desire according to the english dictionary. According to islam does it mean the same thing? So if one does not have a strong sexual desire humrat does not take place even though two people touched each other by shaking hands?

Q: We are planning to adopt my sisters baby boy. Can I put my name after the baby's name for legal documentation purposes e.g. birth certificate, passport. Also is it allowed for my wife to take pills so she could breast feed the baby?

Q: I want to ask that husband and wife are living together, but husband deliberately not doing sex with his wife. The reason is that he is saying that he doesn't like her. It's been one month since their marriage but husband not giving rights to his wife. I just want to know what will be the impact on their nikaah and till how long their nikaah will be valid?

Q: I just did intercourse with my wife during her mensis period and now I am worried about it. Please guide me what would be kaffara for it?

Q: If a girl does not write her name properly, or writes something else instead of her signature on nikaah documents (niqah-naama), is this nikaah valid?

Q: I have a question regarding niqaah. A girl was forced, threatened and pressurized by her parents into the Nikah against her will. So she accepted verbally and in writing against her will and now she is not happy with her husband. She refrains her husband from seclusion, touching and specially having intercourse. She says that the marriage is not valid and she won't live with her husband. Now my question is:

1. If they are not having any kind of physical relation, then will the niqaah be valid? After what time period it will be considered as talaaq if they don't have any physical relation intentionally?

2. If the husband forcefully tries to have some physical relation or touches the wife "forcefully", is it permissible? What will be it's effect on the nikaah?

3. In case the marriage and nikaah is valid, is she permited to ask for Khula'? Please do guide me in detail soon.

Q: I would like to know for hurtmat-e-musaahara to take place for a male he must have an erection, so how does a female know if she committed hurmat-e-musaahara? Also if a person has no desire for there father in-law at all, they just know the rule of hurmat-e-musaahara and due to waswasaa when shaking his hands thinks "I dont want to touch his hands, now I am touching his hand lustfully" and they have a funny feeling. So they don't really know if they actually touched it lustfully or not But they really don't want to touch his hand. They just shaking it because the father in-law gives out his hand to shake. What is the ruling on this? And how can they control this?