What to do??? πŸ’”πŸ˜’πŸ˜”πŸ˜ž

So my so hasn't been home for since Sunday night he was supposed be at work at 3am n out of no where at 1119pm on Mother's Day he needed to go to work.... So Monday gone all day till he came home to shower m put regular clothes on n stayed for 1 hr with me (8months pregnant ) n my son... My son wanted to play with his daddy but he was sleep then I said he needs more daipers he only has 4 left he says ok I'll got ft them but looks at his phones while sayin it n ( remind u we are trying to fix out relationship till baby due) Β so I call him 1 hr 1/2 later if he was close he said I had to pick up my friend Kevin n fix our car it's over heating . Since he was barrowing his dad's gfs sons car. I made dinner n told him okay come eat ... Never came he called again on Tuesday saying unlock the bank card n I told it's not then says I'm at a dealers so I can get another car n I said ok u coming home he said test so not its 257am I haven't talked or texted him since 610pm yesterday... I'm heart broke n feel like he with another girl always informing me n I'm just broken. N need some advice please don't bash me I'm broken down as enough to πŸ˜’πŸ’”πŸ˜’πŸ’”πŸ’”.
Updated: just found out just now at 4am he got that girls number n has been texting he now I'm 34weeks n 2 days heart is broken. I feel like I lost everything but when he told me ... I didn't cry I just felt like I got socked in the gut n my πŸ’” fell out of the my chest cause I new something was up but idk im so in love with him n now I'm like wth do I do ... N I asked y he said I was just friends now he is catching feelings for her n likes her remind he has twins with an ex n now 2 with me πŸ’” I'm just want my happy family back n he said Thearpy for old people not 22-24 year old n I said its for everyone n it's better for us but I'm so lostΒ