Helpp!!

Kaylei • I am 20 with my boyfriend of 2 years. Ttc #1
Me and this guy were just like a friends with benfits or we were fuck buddies. Whatever you want to call it but I am pregnant and I just don't know what to do? He didn't want anything serious and I didn't either but I just feel bad because this is going to get serious! Please let me know what you think I should do or how I should tell him?