My pregnant fiancé wanted to leave me due to lost feelings and says it may be hormones, but doesn’t believe they are

So a little bit of back story my ‘26 F’ fiance and I ‘28 M’ met only a little over 4 months ago. When we met it was out in public at karaoke night. I had been having a hard time and my buddy and I were outside talking and he was asking about my ex who had been messing with my emotions. I was over her at the time but pretty much she was trying to make me feel like crap all the time. My buddy and I are outside of the place and he’s asking about it, my now fiancé walks out and says “screw that girl come talk to me” and from that moment we were inseparable. Until recently (kinda).

Everything from that moment had been great, she told me she loved me first, and I felt the same way of course. We spent a good amount of time together outside of my work and I work 12 hour days and sometimes have to leave town for a few days to a week. When we found out she was pregnant we were surprised but reassured each other that we in this together. Previously before finding that out we were talking about our lives together, how we wanted each other forever, marriage and all that. Her and I both agreed what we had was true love. I still think that.

Now a few days ago or so I noticed that for a little under a week she was being cold and distant towards me, so I mentioned it to her. And she said something a long the lines that she was just not feeling what she had been feeling towards me anymore, and that she needed space. I asked her if we were breaking things off and she said yes. I was absolutely torn. She swears that I have done nothing wrong, that I kiss the ground she walks on and I have been nothing but perfect. That’s great to hear and all but it makes it harder for me to understand how this happened so out of the blue.

After that she was still cold, kinda mean, and I had no one to talk to about it. No one that cared enough anyway. So I was stuck in my head about it. Got physically sick because of the stress. I really love this woman. But, just these past 48 hours, we have been side by side. I took her out of town to go to some stores she wanted to go to and to go out to eat, and we have stayed together. It is like nothing happened and she is right back to loving me. Telling me she does, touching me, wanting to cuddle, wanting me period. She is even talking again about going on our trip we had planned in December, about getting our own place and where it would be. Just talking about us and our future like before.

Needless to say I’m confused as hell. I never plan on giving up on this woman because she has been the best part of my 28 years, and she’ll be the best part of the rest of my life. I just want some advice or anything at all to explain this because when she told me she had lost the feelings for me she said it may be hormones but she didn’t think it was and now it’s back to normal. That makes me thinks it is her hormones just messing with her really bad. Am I right to think it is? Also, she is just today starting her second trimester. We both know things have happened fast but believe that it’s meant to be because we are meant to be. I just hope it’s the hormones that have seemed to make her think otherwise. What do you think?