If i menstrated on the 12th of jan and my cycle is 28days,what date will i ovulate.(2)what are the signs of ovulation?

Ovulation: If you indeed have a perfect 28 day cycle you will ovulate around the 26th. Increased clear, stretchy cervical mucus occurs as does a drop followed by a rise by 1 degree of your basal body temperature.

Symptoms of ovulatio: ovulation can be very irregular and can occur at almost any time during your cycle. Usually it occurs 12-14 days before your period. That would make it about January 26 to the 28th. Symptoms include an increase in temperature, breast tenderness, bloating, increased sense of smell, vision and taste, pelvic cramping, increased sex drive and light spotting.

Ovulation.: Ovulation reliably occurs 14 days prior to onset of menstruation which in your case is also 14 days after onset ( 28-14=14 ). If your cycles are not regular, you cannot count forward from your period to accurately forecast ovulation. You will need a home ovulation test kit to figure it out. If there were reliable signs or symptoms you would not need a test kit.......