Am I a bad mom if i do this?

My boyfriend and his friends are planning a mini trip to Washington state for a few days. And of course My bf wants me to come, it will be like 2 of his friends and another girlfriend. This will be our first trip as a couple. And we will be flying and getting an Airbnb. All in their 30s. We live in California, so its not too far. My son is 2. Me and his dad coparent, so our time is split most of the time, sadly. I spend most of my time with my son right now, its about every day since his dad works so much during the day. But would it be bad if i took a 4 day trip away from him? I have a lot of family willing and able to watch him while his dad is working that i trust, and that watch him when me and his dad are working. So his dsd would be dropping him off then just picking him up after work for those 8 hours of work/ 4 days im gone. Apart of me feels guilty for wanting time to go somewhere for a few days. I know people that talk crap when they see a babymom taking a trip to like Mexico without her kids even if its for 2 days. My son is my whole world of course and i give him all of the love and attention every day. I dont have many friends anymore and never go out. I dont party or anything like that and im not going to get drunk and party but i want to hsve fun and enjoy time with my boyfriend on this trip. Would it be bad for me to spend 4 days without him?

Also weve been dating almost 2 years now, and very committed so this isnt a random fling getaway