Was I selfish?

I've been trying to get my property back from a flat for the last 3 months, the back and forth communication has been really stressing me out.

Bearing in mind I'm 5 months pregnant.

Anyways my mum said that she would take over with this, so I could just rest.

Anyways she organised for the items to be collected not that weekend despite communications taking place that Monday but the following weekend.
She claimed that was the week everyone was free.

My sister who will be helping my mum to collect the things called me and said the situation was crazy.

And that she just wanted to know thr time to meet, so I told my sister I wasn't involved in this anymore as it was too stressful.

She then told me she didn't know why plans had changed to the following week when she had made her weekend free for this.

She then let slip that my mum said she wanted to go to the hairdresser's.

I got so pissed off and told her I really don't need to hear this. I've waited 3 months and now she's talking about the hairdresser's.


Was I selfish?