how often do you have sex?

How often do you have sex or how often do you think is okay? I would take my husband several times a day, but his sex drive isn't that high... is that normal? We would only have sex like 2 times a week if I was lucky, and that was me begging... we finally found a compromise after not having sex for a whole month. Now we do it 3-4 times a week, but I feel like I'm still the one initiating it.