Cycle length between 25 - 35 days is normal, so your cycle is regular. This much variability is normal. You must get serum prolactin
level repeated. If its still high then u need to take treatment for it. otherwise you will be able to concieve easily. Have regular intercourse for 1 year before taking any treatment for infertility
. have intercourse between day 10 to day 20 of your cycle, they are the most fertile days.