Can’t cum from BJ /u/justmerantinglol Sex

So for context I live in a more conservative country where it’s normal for people to only lose their virginity after marriage, both me (19M) and my gf (19F) are virgins. Well idk if you could still consider us virgins, because she has given me BJ before, and I’ve fingered and ate her out before. She doesn’t want to do penetration yet, which I fully understand. But, I can’t seem to cum when she’s giving me head? Like she was giving me BJ and hand job for like 5 minutes straight and I wasn’t even close to completion, so I ended up just telling her to lie down and I’ll eat her out. So question is, is this normal? Or is this something I need to pay attention to?

So for context I live in a more conservative country where it’s normal for people to only lose their virginity after marriage, both me (19M) and my gf (19F) are virgins. Well idk if you could still consider us virgins, because she has given me BJ before, and I’ve fingered and ate her out before. She doesn’t want to do penetration yet, which I fully understand. But, I can’t seem to cum when she’s giving me head? Like she was giving me BJ and hand job for like 5 minutes straight and I wasn’t even close to completion, so I ended up just telling her to lie down and I’ll eat her out. So question is, is this normal? Or is this something I need to pay attention to?