Porn vs real life sex

Me and my boyfriend have been together for nearly 2 years as of this coming October 31st. Been having sex since June 2018. Our sex life used to be great. We had sex every single day and sometimes multiple times a day. Until i got pregnant. We had sex a few times while I was pregnant, and then since having my son in April, we barely have sex and I’d rather just do it myself. Is this a problem? I’ve always been this way and once I’m used to someone, I lose the whole “sex sex sex sex”desire.