Help... 16 weeks Painful Braxton Hicks?

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This is my second pregnancy. I have been having Braxton Hicks contractions every night and they are kinda painful and exhausting. I'm having pelvic pain also. I've been feeling frisky but with all this pain I'm scared to have sex. My husband has been understanding but I feel bad that I can't enjoy him sexually. Has anyone else had this much pain so early? Is it a sign of early delivery? My BH contractions didn't get painful with my first pregnancy until 40 weeks (the week I gave birth). So I'm nervous. Doctor appointment is on 11-10 (Friday) so I'll ask then too. Any advice?