How long do side effects of Clomid last???

Lindsey • IVF miracle born 12/11/2018, surprise baby #2 due August 2021!
Took Clomid for the first time this cycle. I'm 10 dpo and my nipples are VERY tender, and more so each day that passes.  Could this still be a side effect of Clomid at this point??  Really hoping it's a possible sign of pregnancy...