hello! It’s my first time posting on here, but I’m very concerned with my cat. She’s over a year old and got out Christmas night. Came back Jan 2 an did not look pregnant until a month later. Her nipples became longer and pink, an got a lil round belly. Well she still has not given birth but feels smaller than she did a couple weeks ago, and today has gone into heat? There’s no way she gave birth without me noticing, especially because she won’t let me leave her side. Is this normal? I plan to take her in tomorrow but I’d like some advise or opinions if you guys have any, I’d appreciate it!