How do you know if you have an orgasam ??

So long story short is I was having sex with my bf and lately he’s been talking usually he’s find if silent or whatever or sometimes he will just tell me to keep playing with my Pusey how can I cum without playing w my Pussy but he was hitting something that shit starting hurting my gut or whatver the hell how I’m supposed to play with my pussy when you hurting my damn walls anyways he’s not that big it’s average but he knows how to work it you know and I’m flexible so he be blacking out lol anyways so this time he started talking more telling me that it’s my dick nobody else’s he loves my pussy it be grabbing his dick he will always fuck me and all this then what threw me off was he kept asking me to cum on his dick he wants that white stuff on his dick lmao I don’t think I’ve ever “came” before I never had nothing come out of my vagina so I just didn’t say anything back because shit I didn’t know what to say oh I don’t cum or whatver lmao anyways it fucked yo the mood in posted to see my love again this weekend and I want to cut out the awkwardness and not have him think that it’s him because I love having sex with him he knows how to fuck and he’s the first one to make sure your pleased first before he gets off like will gladly eat my pussy and ass for ever long I want him to or until I beg him to fuck me already. My ex had a big dick but couldn’t fuck he sucked at it only did one position and it was fucking spooning smh anyways I’ve never had stuff come out before I’ve gotten the tensed up feeling then it goes away fast asf