I'm scared of breastfeeding again

DH and I are TTC #7. So it's not like I've never BF before. I had 2 children that weaned themselves by 14 months, and the others weaned at 18+ months. My 1st 4 children were awesome nursers. Never had a problem except an occasional infection with the 1st 2. But with my last 2...pure hell!! I mean BAD!!!! When #5 was 4 weeks old, I got the dreaded red spot, and I did everything I could to get it better. But it just got worse. I took 2 doses of Diflucan as well. It was my left side, and it was horrible. My nipple was so horrible looking. So painful to nurse her on. I pumped that side and gave it to her in the bottle. She nursed the other. After 3 months, it was well enough to nurse her again on that side. With #6, by 4 weeks, it was both sides, and I was in horrible pain. I came on here begging for help. I tried everything. I quit nursing her, and pumped, and then quit doing that because it hurt so bad, and it was just horrible. Then when she was about 4 months old, she refused the bottle (of formula that I was giving here...I'm so ashamed!), so I tried nursing her again, and she latched right on, and didn't stop until she weaned herself at 14 months.

These 2 problems didn't start until after I started taking Synthroid and Zoloft. I wonder if they had anything to do with it? I'm on Synthroid still, but now taking Lexapro. Maybe it has nothing to do with it.

I am so scared, that I told DH that if I do get preggo, I'm not nursing. He didn't like that idea (even though at the beginning of our marriage 17 yrs ago, he was against BF...I changed him! LOL!). But I am so nervous that I will get infections again. I have my pump and bottles still, but I sure hate to use them! :