Breastfeeding desire is gone

I have a 7 month old. Breastfeeding has been extremely challenging the entire time, but I've been persistent and managed to keep going. I combo feed; she gets about 70% breastfeeding and 30% formula. Well this morning I woke up and I just have zero desire to breastfeed her at all. She will be 8 months next week and I had the goal of 1 year. But today I am so done, the thought of breastfeeding her makes me want to cry, and I want to just go full formula. I don't feel bonded to my baby doing it. I know some have that experience but I've never felt that way. Frankly, I hate it. But it would be much better for our budget for me to keep breastfeeding. Formula is EXPENSIVE and to this point we haven't had to buy more than 2-3 cans per month which runs us $80-120. If we went full formula it will be an extra $120/month at minimum, and we could use that money elsewhere. My husband says not to be a martyr about it, but I want so badly to have the pride of doing it for a full year. So conflicted right now. I guess I could switch to pumping. I'm a SAHM. Maybe even just pump for a few days to give myself a break. I don't know. I did get my period back this month so maybe it's a hormonal thing that I feel like this today.