To test or not to test

So, I'm 4 days late for AF. I've only had 1 cycle since having my son, now 6 mos. old, last month. He was exclusively breast fed until about 5 weeks ago. I know exclusively breastfeeding will stop you from having a cycle for awhile, but not forever. TBH I was happy when AF showed last month, but this month nothing. I want ti think it's my body getting re-adjusted to having a cycle, but I don't know. My BF and I baby dance a lot. I know it's not uncommon to get pregnant, but I'm not quite ready for another one just yet. We are very much in the mind set, "If it happens, it happens". Anyway, just curious what y'all thought.