Toddler nursing more

My 16 month old has been only nursing in the morning for about 3 months now. There were even busy days where he didn’t get to nurse at all. I don’t want to wean him, I just figured after awhile he just wouldn’t want to anymore, considering he doesn’t get much out. I don’t even get letdowns anymore. Lately, he’s been wanting to nurse during the day again. At least once or twice during the day. I’m not mad about it, it’s just weird. Is this a regression of some kind?