It’s natural to worry about it all. I exchanged at 33 weeks pregnant and whilst it was stressful it was totally worth it once baby was here and we had our new home! Just keep thinking of the end goal x
Your not hurting the baby but you need to try and stay calm. Easier said than done, I know. You could try meditation. There is a good meditation series on Netflix called head space. I have used it and found it useful. Staying calm throughout your entire pregnancy probably is best but as it is over 9 months, what is the chance of that. I was stressed out during my pregnancy due to me and my husband issues which ended in us splitting and my daughter is now 4 and happy and healthy. Stressing about hurting your baby while being stressed will just stress you more. It's a vicious cycle. As well as meditation you could look on the internet for breathing techniques to calm you
Your not hurting your baby at all don't stress about that! Yes buying and selling is a stressful time but you won't be doing any harm to your baby for having different emotions x