MOMS WITH CATS! My cat (2 yr old male not yet fixed) will not stop meowing, he acts like he wants…

MOMS WITH CATS! My cat (2 yr old male not yet fixed) will not stop meowing, he acts like he wants attention but when I try to pet him he just walks away. He was always really play full as a kitten, is this an nasty teen cat thing or is it a heat ( my daughter is three months, this started when I got pregnant)