Had a great first date and weekend (her words)? Had a second date and planned a third but she’s taken nearly 2 days to reply to a message?

Adz8999
So any advice would be great here. Had a great weekend with a girl I met online. Following first date next day we did sleep together. I arranged another date few days later to go get some food. She said really enjoyed that and couldn’t wait for the next date so I told her I would arrange something for following weekend which she agreed

However, I’ve noticed a small change in the length of time it takes for her to reply to a message. I mean we both have busy jobs so I know we aren’t on phones 24/7.
she went away for 2 days on with business and she messaged me on first day saying it’s been non stop etc and she was going to have food and some drinks to chill. I did reply but I’ve not heard from her in almost 2 days.

Should I be concerned here or am I over thinking things?
I mean I know it’s a relatively new busy job for her but surely no contact while away is slightly odd.
And I have not sent a follow up text as I hate double texting if a girl hasn’t replied to first text.
any advice is much appreciated
Had a great first date and weekend (her words)? Had a second date and planned a third but she’s taken nearly 2 days to reply to a message?
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