Sexual question ?

Ok this may sound weird, but me and my boyfriend have been doing it a lot lately and he’s been c*mming inside me probably like 4 times in 3 days. This morning around 4am, we had sex and he didn’t ejaculate in me. Also I’ve taken a shower around 2:30 and felt normal and didnt feel anything coming out. Okay it’s now 5:30pm and I suddenly feel something coming out my vagina, it feels really thick and warm so I go to the bathroom, sit on the toilet to push it out and it’s a thick glob of semen. I wipe and there’s no discharge or anything. Has this happened to anyone else ? Is it normal ?