Pregnant and Sex is blah

So I’m 11 weeks pregnant and I’m ridiculously horny all the time however my boyfriend isn’t making me cum and I’m left unsatisfied at this point we’re having sex every other day because I want it thinking I’m gonna get this big orgasm I’ve been looking for but it’s not happening but when I masturbate I cum within minutes

How can I reach the orgasm I want when having sex with my boyfriend? I’m getting frustrated at this point lol