Am I being sexually abused? Help please

Me and my boyfriend have been dating for around four months. I am very in love with him and things are mostly good but he gets extremely upset with me when I do not want to have sex with him. He will start to touch me down there and I will tell him to stop or move his hand and he gets extremely mad. He says I don’t love him. I assure him I do I just have past trauma from an SA that happened to me over a year ago which he knows about. He tells me he would be nicer to me if we were regularly having sex and that I’m not trying hard enough. Last night, I told him I didn’t want to have sex. It was too much for me and I didn’t want to get worked up. He got mad and begged me over and over to have sex with him and asked me what he needed to do to get me to have sex with him. I woke up this morning to him touching me and then getting on top of me. I just let him because I don’t know what to do anymore I feel like if I say no to anything he will hate me and break up with me. I really don’t want that to happen but I feel like I am being sexually abused in some way. I will also mention that last night when he was touching me I tried to move his hand several times and he kept putting it back. This happens sort of frequently lately. Please help me.