DV or am I being sensitive?

Please don’t call me stupid I just want advice and to talk. So my husband went out to the pub and left me with our 5 month old baby. This was about 4 and he said before he left he’ll be fast only 1 hour which was fine because I was going to cook a roast however if it was too late I would’ve be able too. Anyways time went on I asked him to be back 7 he compromised 7.20. I said how if it was too late I wouldn’t be able to do anything as the baby and how he need to be more willing to help me with baby and home life (he doesn’t help despite me asking several times and his saying yes) it got to the point where I was crying and breaking down just sat their alone another night. He came back at 8 and asked if dinner was ready I cried again because he knew it wouldn’t be I needed him back so he can sit with baby and asked if I’m going to do it then. After I pulled myself together I gave him the baby and started on preparing. 10 minutes later he asked me to stop with food and stay with the baby as was being fussy still and said he wanted his mum. I reminded him he is his son and he will need to handle it. Not even 5 minutes later he throws his phone and starts to accuse me of cheating lying accusing me of sending him something on tik tok saying something about how life was better without him?! Literally out of no where and I completely denied this as I knew i definitely had not done that I asked him to show me and he said he couldn’t because it had been deleted but he saw it and went crazy saying how could I do this to him is this what I really think and he was shouting at me whilst doing it. I ran to grab my baby and held him whilst he was still shouting I was just crying and having a panic attack as i legitimately had no idea what he was talking about. He threw chairs, the hoover at the wall which smashed, his phone again and ran to bedroom slamming the door and trashing that as well. I completely went into panic mode and felt I needed to get out with baby as I was so afraid of what would happen next. Mind you I’m also 4 months pregnant (please don’t come at me for that either because I thought this man would be a good father before it all changed suddenly and it was a shock for me as well) my first instinct was to leave but I couldn’t because I needed things for baby and I was afraid he would follow me and physically block me from leaving anyway. He came back out and I tried to distance myself from him as I had baby in my arms and he was just telling me how much he loved me it was crazy like a whole different person. I said to stay away from me and I once said I had no idea what he was talking about especially without actual evidence! He’s from Europe and is Turkish so he said it was a video in his language and I probably didn’t know what it meant. None the less I still didn’t send anything to him so I don’t know where’s he’s coming from with this. I cried more throughout getting my son prepared for bed as he sat on a kitchen chair watching me playing with his wedding ring. I took my son to our bedroom where he sleeps and stayed with him. I was so scared to leave as I wasn’t sure would happen when it’s me and him. I truly believed he was going to hurt me and has the power to. He went to sleep on the sofa but moved back to the bed halfway through the night Please help me it’s 8am I don’t know what to do I have my mum coming in about an hour but I’m so shocked by this display of behaviour it’s like I don’t know this man, divorce is not an option ( EDIT: purely because we wed in his country so would need to go back together and finalise divorce there not in the UK and he wouldn’t agree) as he would not agree to it and I do love this man I’m just afraid he will do it again but worse. He does lose his temper often but never this bad and never accusing either. I believe I’m a good honest person and I would never do anything to hurt someone I love, if I did do what he was saying I would own up but I haven’t and he’s making me believe I did. Just am I being over reactive or ??