I keep asking him round for sex

I am 5 months pregnant and SO HORNY all the time and yes i have used a vibrator when I need to but its not the same 😫 me and my boyfriend have split up about a month ago but when I am horny I text him to come for sex because it's not like i'm going to have sex with anyone else while his baby is in me. It makes me feel better at the time and i think i'll be fine but then after I regret it because I miss him I dont know what to do 😔