Trouble Cumming

an

My boyfriend used to make me come with oral within 15 minutes. Lately, I haven't been able to come and him going down on me has become a chore because I know he likes doing it. It feels good but I just can't get off. I haven't been able to get off on my own either. My sex drive has felt pretty low and I only have sex now to satisfy him. (He doesn't know this.) Is it possible the pill has been messing with my libido? It's a very low dose pill so I thought there wouldn't be many side effects...