My 10 (almost 11) month old won’t stop nursing

Never posted her before but figured some of you might have experienced this as well. I am 13 weeks pregnant with my second baby, and recently, probably about the last 4 weeks my child is nursing constantly while I am around. I went back to work about 6 weeks ago and it seemed to get worse about 4 weeks ago. Anytime I’m with her she just constantly wants my boob, when she wasn’t like this before. She’s still having good wet diaper output, normal bowel movements for the most part (she gets constipated sometimes but usually resolves itself fairly quickly when I give her some extra apples or make sure she drinks some water) but otherwise she is constantly pulling up my shirt and fussing until I give her my breast. It’s starting to drive me nuts, because she is perfect according to my mom and my husband who watch her while i’m at work. Is this just a comfort thing for her since she was used to me being home with her for so long or is this something else going on? I should note that she is getting about 3 meals a day between pouches, snacks and eating off her father and I’s plates and or her own personal serving.