Lube!?!?

So my husband and I always use lube and we just started TTC a month ago. I have heard that regular lube can greatly effect sperm mobility. I have also looked into preseed but didn't buy it because I'm not sure how it is used exactly and if it is really worth it. I am pretty sensitive and prone to getting UTI's so I'm nervous to use household items but has anyone gotten pregnant when using basic lubricant!?