I'm horny but not wet and it's making sex hurt

So my boyfriend and I have been fucking for a while and lately I've been getting really horny but not wet but we still push it and try to make it feel better and I've said we should use lube. But it just hurts after a while so I'm trying to figure out the different things it could be. 
I am a few days away from my period. I have been changing up anti depressants and changing ideas about medical Marijuana  I have a lowered sex drive because of the meds and lots of other factors. Plus maybe lube would be better? But what else could help? Is there something I should look into seeing a doctor for? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors