A woman is compatible with a man and vice versa, leave the stars alone!

Its a 20% chance, technically it depends on how fertile that sperm is.. And non technically you don't have to bother about that, if you miss your periods then you have to go for a pregnancy test.

First find out who was very dear to her in her family whom she had lost, now tell her in her eyes that you yourself have come up in her life ready to take that position of that loved one whom she has lost, I bet this will work.

The red bumps are caused due to excessive temperature inside your mouth, avoid eating spicy foods, and stop chewing tobacco, smoking for a while, you can call it a food allergy too, nothing much serious, its a common phenomena.